Questions

USB ports strange problem?

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3 Votes
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USB ports strange problem?

Kerah
i have a Toshiba satellite C650 lap top win7 operating system and the problem with the USb ports as described
- when i connect my mouse its OK and there are no problem
- when i connect my stack flash, its OK to explore the contents
- when i try to copy from the flash drive to my lap the USb ports gets out of use and i must restart my lap to get it back in use.
- i have checked the drivers for the USB and it was OK
- i have reinstalled the operating system but the problem stilled in apperance
- if any one face this problem before please lets discuss
  • +
    1 Votes
    markp24

    Hi

    have you tested the usb stick on another computeR?
    have you tried formatting the drives from that machine?
    check power saving settings in the bios? (i doubt it, but see if these some power saving feature on the usb ports, and disable it)

    +
    0 Votes
    Kerah

    - yes i have tested the usb stick on another computer and it works good
    - i have formatted all the drives
    - checked the power saving in the bios
    i have tried every thing you told but the same problem appears

    +
    0 Votes
    MichelSimon

    I have read your blog it is very helpful for me. I want to say thanks to you. I have bookmark your site for future updates;

    <a href="http://www.villedasogno.net/ville_porto_cervo.html">ville porto cervo</a>

    +
    1 Votes
    LocoLobo

    This hasn't happened to me with a stick. But it has with several USB HD. You might check the power settings.

    +
    0 Votes
    Kerah

    thank you i made this edit but the problem appears again after a while and when checking the registry again i found the changes i made disappears so every time i must make this changes.

    +
    1 Votes
    Awahili Guni

    Some computer manufacturers are coy! They may display an OS (won't matter if it is a Win, Mac, or What-Not - with as many as 6 to 8 USB ports just to lure a buyer.

    Sadly, in this case "LET THE BUYER BEWARE" - ask tons of questions upfront! What you see is not what you always get;

    Let's put it this way, supposed you purchased an OS with 6 USB ports in back plus 2 in front. WOW - what a steal! Is it really?

    What really is behind all of this is the major problem:

    You could end up with having 2 USB ports which are the Main Core USB ports, the other 4 being the Sub-Ports (in the back); while those in the front are "limited access USB ports with limited of you-name-it". It is exceptionally good idea to ask the salesperson to death tirades of question even if he/she is unable to provide you info or data; then make him/her go to the Tech Department and get that info before you buy! (After all - it is your $$$ isn't it? How would you like for me to sell you a huge Hotel in Las Vegas with a nice sandy beach front with a fully loaded Marina where Millionares can park their Yachts? Get the idea? Don't be fooled with what all is in the "specs" or aka info.

    WHY? Specs (Specifics) aka Info, doesn't always provide you all the info you need; they just provide you specs to get you drooling just as a Used Car Salesman would sell you that Lexus but won't tell you that there's a cracked engine they welded nor would they tell you that they had welded some other parts with hopes that you wouldn't take it to the Tech of YOUR OWN for inspection but of theirs if you did elect to do so ... for want of an illustration.

    One option is - finding that "Main USB port" is the issue; usually unless yours was custom built, one can find out via the Manufacturer; if they are honest enough to tell you where 2 or 3 or if you are lucky you have 4 (on newer models) if it is a desktop.

    Try the connections there and see what happens - whether it be hooking up your camera to USB port to a flash drive; trying various things will let you know this is a main USB port. If Printer to Digital Camera works on it and some of the Flash do, except one. The chances are the Flash has gone D.O.A. (I'm sorry to report that - I've had some 32 GB and 64 GB Flashies that have passed away and have learned that "name brands" are no different than "generics", in fact, my generics have superceded in the lifespan of the name brands which I find that a little bit ironic.)

    Give this a shot and see how it goes I am going to make another post of another two options you can do

    +
    0 Votes
    dogknees

    Where in the OS is the number of USB ports set? I thought it was the motherboard that set this.

    +
    0 Votes
    .Martin.

    maak_123 shouldn't be having troubles with this, as this is a laptop, and most USB ports will be soldered onto the board. furthermore, I have never really seen any problems with ports, unless you put on cheap 'multi-adapters'

    +
    1 Votes
    Awahili Guni

    In Win Vista / Win 7

    Go to Start, in Search - type in "command.exe" (without the quotes) - once it comes to manifestation - right click and run as Administrator and a pop-up will appear.

    Type exactly like this without the quotes "sfc/scannow" - if this is the first time you have run this feature, it will take some time; this will repair everything in the Windows from registry to whatever and yet, you can be online or offline and do whatever you need to do while it's running in the background. (Doesn't take much resources, but I do strongly recommend that you first clear cache files, temp files, run the disc/disck clean up, etc first.)

    Once it has been completed it will provide you notifications if you had any errors and the specs on this, for example - integrity errors were found and were repaired. (Just for an illustrative purpose)

    I do recommend people to reboot as soon as you complete this, and above all things - keep your OS up to date always!

    =========================================

    If all else fails - while I am only a Windows Certified here and I cannot speak on Mac or other OS Systems - I can advise you the other option is for XP (Microsoft is disconitnuing support here), Vista, and 7 is:

    Going to Control Panel to Device Manager and delete ALL USB port related hardware found on the list after you have backed up and created a System Restore first. Windows automativally will detect and reinstall - this usually resolves the issue 98% of the time.

    At the last resort - is going to Microsoft "Fix-It" (clicking on Windows - select your OS - and then select hardware - install the program and allow Fix It to resolve this issue.


    ===================================================

    < b> TO THE ORIGINA POST APPLIED ABOVE: I do want to make an admendment for I realized I forgot a sentence: It is generally a good idea to contact your OS Manufacturer, either via their website of if you have the info handy that came with your OS; then give them a call first. </ B>

    <i> I hope all this helps! And good luck and do keep us posted!</ i>

    +
    0 Votes
    Kerah

    i have made the two options you posted before but the problem appears again

    +
    1 Votes
    Alpha_Dog

    USB devices pull a good bit of power. You need to check all the combination of devices in another computer. If it works on the other computer, you may wish to try installing a powered USB hub or replacing the power supply to the laptop.

    +
    1 Votes
    Kerah

    this solution enabels me to use the usb sticks for longer time but not much time
    - i made a small edit to the registry under
    HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices
    i removed all the drive letters which not existing in my system and then it works fine but not for long time the problem appears again but after more time.

    +
    1 Votes

    You need to reboot your system for the changes to take affect.

    +
    1 Votes

    You could do a repair.
    Load the disk in the drive and reboot your machine.
    Press any key to make it start with the dvd disk.
    Press the install button.
    Then look down to the bottom left you will see "Repair", click on this and then select the repair option.

    OR:
    Right-click "My-Computer", select Properties.
    Click Hardware. Open device manager. Find your USB network device. Double-click it. Select the Power tab and clear the "turn this device off to conserve power" checkbox.

    Hope this does the job for you.

    +
    1 Votes
    ITOdeed

    I have a Toshiba A205 running Vista HP with four USB 2.0 ports, and this USB assignment problem happens to me on one of my ports when I reboot the laptop. However, the USB port doesn't disappear. It is assigned a different drive letter. It was originally assigned drive letter F, but after each reboot Vista reassigns it to E. This phenomenon happens when an item in one of used ports is unplugged and the laptop is rebooted while the item is unplugged.

    +
    1 Votes
    aravind.pk

    Sometimes, its weird to see that certain Flash drives or External HDDs comes with an installation CD/DVD whatever. I wonder why this is required when those are USB devices or USB enabled. Sometimes, certain flash drives uses USB services, may be, for security purposes on the contents of ur flash drive. So,check if any and try install those. Again, not sure this would help but lets try out that.

    BTW, a general question here... if the question is answered, will that be marked as answered so that the question need not to be answered by anyone else?

    +
    1 Votes
    Awahili Guni

    I know these folks and like myself; we are certified Experts to Masters - and if one looks, they are posting a negative on every single Certified Expert / Master's recommendation and suggestion?

    I find this absolutely an insinuating insult; unless we have a "TROLL" in here?

    +
    1 Votes
    Awahili Guni

    TWO MORE THINGS - One you can do and another if you are not comfortable in doing the first; then try the second:

    First - create a restore point before proceeding - it is easier to go to Control Panel - System - then System Protection and create a restore point faster this way than anything else, just click, click, click and go - name it whatever you want, then I suggestthat you copy and paste if all possible print it out or write it down because it isn't complex or complicated.

    Go to Start - Control Panel, to your Hardware Devices; scrolling down - look for ALL of your USB PORTS - right click, a pop up box will appear:

    (Do this one at a time)

    On the tab panel (usually the last one in most cases but sometimes it's the first one in "advanced" - but take your time to locate it), look for the Driver Info with the options (because some are in the Normal Mode and others run in the Classic Mode is the reason why I am posting in this method). Click on Driver Update, if it asks for a disk, ignore, select Windows Update or let Windows Automatically locate it for you which would include Windows Update. If it says that the driver you have is the best driver or is the updated driver.

    Go to the next one and repeat it until you have completed the list of the USB Ports.

    Remain online - making sure you are connected via Direct Connect (e.g. like cable connection rather than Wi-Fi / Wireless) running on the adapter (power source) and not battery.

    Now in that hardware list - delete them, and reboot; when you return back online - Windows 7 will automatically will install new hardware, you will see this icon on the lower right (standard mode unless you have tweaked it); then go to Windows Update and run a Manual Mode of Windows Update which will automatically search for updates.

    Much of the time, this resolves the issue.

    Sometimees Windows Diagnostics aka "Windows Trouble Shooting" will automatically appear if there were issues or problems. There is another alternate mode if you do not feel comfortable in doing this:

    Go to Microsoft's website and type in FIX IT - click on Windows - Select OS Version of 7 - Option Hardware and Devices, install the program and let it run and repair the issues for you.

    While it will always create a restore point; in case it didn't "fix It" - but it is handy because 99.9% of the time, it does work!

    +
    1 Votes
    .Martin.

    shorting ports? I had the same problem on a laptop that the USB was shorting, and giving the exact same problems. you could get it replaced with a new port, but that would quite expensive.

    +
    1 Votes
    Awahili Guni

    He may be right on the dot - Shorting ports; I don't know why any of us didn't think of that one before.

    Kudos for you for posting that one Martin!

    +
    0 Votes
    TheChas

    We have experienced a few different USB flash drives that do not work with Windows 7 and can even end up with a blue screen.

    If the system the USB drive works on is running an older version of Windows, I would start to consider that it might be a compatibility issue between the OS, USB controller and the flash drive.

    I would see if a different make or model flash drive works with your laptop.

    We contacted the manufacture of one of our flash drives and they provided a work-around using compatibility mode when initializing the specific model of drive.

    Chas

    +
    0 Votes
    tazyx

    Hi,
    Check this out:
    http://forums.computers.toshiba-europe.com/forums/thread.jspa?threadID=65584
    http://forums.computers.toshiba-europe.com/forums/thread.jspa?threadID=65823
    http://forums.computers.toshiba-europe.com/forums/thread.jspa?threadID=65835
    They have problems with MB, implementation of chipset is POOR ....
    "I got a bad news for you, C650 has a little problem. It suhtsdown the USB ports to prevent over current damage, but C650 do this too early, so if I were you, I take it to an ASP for motherboard replacement.The revisioned one works fine."
    Go to change MB if it is still in warranty.
    If not ... buy other brand (Acer, Asus, Lenovo, MSi).
    Good luck.

    +
    1 Votes
    LocoLobo

    This hasn't happened to me with a stick. But it has with several USB HD. You might check the power settings.

    +
    1 Votes
    Awahili Guni

    Some computer manufacturers are coy! They may display an OS (won't matter if it is a Win, Mac, or What-Not - with as many as 6 to 8 USB ports just to lure a buyer.

    Sadly, in this case "LET THE BUYER BEWARE" - ask tons of questions upfront! What you see is not what you always get;

    Let's put it this way, supposed you purchased an OS with 6 USB ports in back plus 2 in front. WOW - what a steal! Is it really?

    What really is behind all of this is the major problem:

    You could end up with having 2 USB ports which are the Main Core USB ports, the other 4 being the Sub-Ports (in the back); while those in the front are "limited access USB ports with limited of you-name-it". It is exceptionally good idea to ask the salesperson to death tirades of question even if he/she is unable to provide you info or data; then make him/her go to the Tech Department and get that info before you buy! (After all - it is your $$$ isn't it? How would you like for me to sell you a huge Hotel in Las Vegas with a nice sandy beach front with a fully loaded Marina where Millionares can park their Yachts? Get the idea? Don't be fooled with what all is in the "specs" or aka info.

    WHY? Specs (Specifics) aka Info, doesn't always provide you all the info you need; they just provide you specs to get you drooling just as a Used Car Salesman would sell you that Lexus but won't tell you that there's a cracked engine they welded nor would they tell you that they had welded some other parts with hopes that you wouldn't take it to the Tech of YOUR OWN for inspection but of theirs if you did elect to do so ... for want of an illustration.

    One option is - finding that "Main USB port" is the issue; usually unless yours was custom built, one can find out via the Manufacturer; if they are honest enough to tell you where 2 or 3 or if you are lucky you have 4 (on newer models) if it is a desktop.

    Try the connections there and see what happens - whether it be hooking up your camera to USB port to a flash drive; trying various things will let you know this is a main USB port. If Printer to Digital Camera works on it and some of the Flash do, except one. The chances are the Flash has gone D.O.A. (I'm sorry to report that - I've had some 32 GB and 64 GB Flashies that have passed away and have learned that "name brands" are no different than "generics", in fact, my generics have superceded in the lifespan of the name brands which I find that a little bit ironic.)

    Give this a shot and see how it goes I am going to make another post of another two options you can do

    +
    1 Votes
    Awahili Guni

    In Win Vista / Win 7

    Go to Start, in Search - type in "command.exe" (without the quotes) - once it comes to manifestation - right click and run as Administrator and a pop-up will appear.

    Type exactly like this without the quotes "sfc/scannow" - if this is the first time you have run this feature, it will take some time; this will repair everything in the Windows from registry to whatever and yet, you can be online or offline and do whatever you need to do while it's running in the background. (Doesn't take much resources, but I do strongly recommend that you first clear cache files, temp files, run the disc/disck clean up, etc first.)

    Once it has been completed it will provide you notifications if you had any errors and the specs on this, for example - integrity errors were found and were repaired. (Just for an illustrative purpose)

    I do recommend people to reboot as soon as you complete this, and above all things - keep your OS up to date always!

    =========================================

    If all else fails - while I am only a Windows Certified here and I cannot speak on Mac or other OS Systems - I can advise you the other option is for XP (Microsoft is disconitnuing support here), Vista, and 7 is:

    Going to Control Panel to Device Manager and delete ALL USB port related hardware found on the list after you have backed up and created a System Restore first. Windows automativally will detect and reinstall - this usually resolves the issue 98% of the time.

    At the last resort - is going to Microsoft "Fix-It" (clicking on Windows - select your OS - and then select hardware - install the program and allow Fix It to resolve this issue.


    ===================================================

    < b> TO THE ORIGINA POST APPLIED ABOVE: I do want to make an admendment for I realized I forgot a sentence: It is generally a good idea to contact your OS Manufacturer, either via their website of if you have the info handy that came with your OS; then give them a call first. </ B>

    <i> I hope all this helps! And good luck and do keep us posted!</ i>

    +
    1 Votes
    Alpha_Dog

    USB devices pull a good bit of power. You need to check all the combination of devices in another computer. If it works on the other computer, you may wish to try installing a powered USB hub or replacing the power supply to the laptop.

    +
    1 Votes
    Kerah

    this solution enabels me to use the usb sticks for longer time but not much time
    - i made a small edit to the registry under
    HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices
    i removed all the drive letters which not existing in my system and then it works fine but not for long time the problem appears again but after more time.

    +
    1 Votes

    You need to reboot your system for the changes to take affect.

    +
    1 Votes

    You could do a repair.
    Load the disk in the drive and reboot your machine.
    Press any key to make it start with the dvd disk.
    Press the install button.
    Then look down to the bottom left you will see "Repair", click on this and then select the repair option.

    OR:
    Right-click "My-Computer", select Properties.
    Click Hardware. Open device manager. Find your USB network device. Double-click it. Select the Power tab and clear the "turn this device off to conserve power" checkbox.

    Hope this does the job for you.

    +
    1 Votes
    ITOdeed

    I have a Toshiba A205 running Vista HP with four USB 2.0 ports, and this USB assignment problem happens to me on one of my ports when I reboot the laptop. However, the USB port doesn't disappear. It is assigned a different drive letter. It was originally assigned drive letter F, but after each reboot Vista reassigns it to E. This phenomenon happens when an item in one of used ports is unplugged and the laptop is rebooted while the item is unplugged.

  • +
    1 Votes
    markp24

    Hi

    have you tested the usb stick on another computeR?
    have you tried formatting the drives from that machine?
    check power saving settings in the bios? (i doubt it, but see if these some power saving feature on the usb ports, and disable it)

    +
    0 Votes
    Kerah

    - yes i have tested the usb stick on another computer and it works good
    - i have formatted all the drives
    - checked the power saving in the bios
    i have tried every thing you told but the same problem appears

    +
    0 Votes
    MichelSimon

    I have read your blog it is very helpful for me. I want to say thanks to you. I have bookmark your site for future updates;

    <a href="http://www.villedasogno.net/ville_porto_cervo.html">ville porto cervo</a>

    +
    1 Votes
    LocoLobo

    This hasn't happened to me with a stick. But it has with several USB HD. You might check the power settings.

    +
    0 Votes
    Kerah

    thank you i made this edit but the problem appears again after a while and when checking the registry again i found the changes i made disappears so every time i must make this changes.

    +
    1 Votes
    Awahili Guni

    Some computer manufacturers are coy! They may display an OS (won't matter if it is a Win, Mac, or What-Not - with as many as 6 to 8 USB ports just to lure a buyer.

    Sadly, in this case "LET THE BUYER BEWARE" - ask tons of questions upfront! What you see is not what you always get;

    Let's put it this way, supposed you purchased an OS with 6 USB ports in back plus 2 in front. WOW - what a steal! Is it really?

    What really is behind all of this is the major problem:

    You could end up with having 2 USB ports which are the Main Core USB ports, the other 4 being the Sub-Ports (in the back); while those in the front are "limited access USB ports with limited of you-name-it". It is exceptionally good idea to ask the salesperson to death tirades of question even if he/she is unable to provide you info or data; then make him/her go to the Tech Department and get that info before you buy! (After all - it is your $$$ isn't it? How would you like for me to sell you a huge Hotel in Las Vegas with a nice sandy beach front with a fully loaded Marina where Millionares can park their Yachts? Get the idea? Don't be fooled with what all is in the "specs" or aka info.

    WHY? Specs (Specifics) aka Info, doesn't always provide you all the info you need; they just provide you specs to get you drooling just as a Used Car Salesman would sell you that Lexus but won't tell you that there's a cracked engine they welded nor would they tell you that they had welded some other parts with hopes that you wouldn't take it to the Tech of YOUR OWN for inspection but of theirs if you did elect to do so ... for want of an illustration.

    One option is - finding that "Main USB port" is the issue; usually unless yours was custom built, one can find out via the Manufacturer; if they are honest enough to tell you where 2 or 3 or if you are lucky you have 4 (on newer models) if it is a desktop.

    Try the connections there and see what happens - whether it be hooking up your camera to USB port to a flash drive; trying various things will let you know this is a main USB port. If Printer to Digital Camera works on it and some of the Flash do, except one. The chances are the Flash has gone D.O.A. (I'm sorry to report that - I've had some 32 GB and 64 GB Flashies that have passed away and have learned that "name brands" are no different than "generics", in fact, my generics have superceded in the lifespan of the name brands which I find that a little bit ironic.)

    Give this a shot and see how it goes I am going to make another post of another two options you can do

    +
    0 Votes
    dogknees

    Where in the OS is the number of USB ports set? I thought it was the motherboard that set this.

    +
    0 Votes
    .Martin.

    maak_123 shouldn't be having troubles with this, as this is a laptop, and most USB ports will be soldered onto the board. furthermore, I have never really seen any problems with ports, unless you put on cheap 'multi-adapters'

    +
    1 Votes
    Awahili Guni

    In Win Vista / Win 7

    Go to Start, in Search - type in "command.exe" (without the quotes) - once it comes to manifestation - right click and run as Administrator and a pop-up will appear.

    Type exactly like this without the quotes "sfc/scannow" - if this is the first time you have run this feature, it will take some time; this will repair everything in the Windows from registry to whatever and yet, you can be online or offline and do whatever you need to do while it's running in the background. (Doesn't take much resources, but I do strongly recommend that you first clear cache files, temp files, run the disc/disck clean up, etc first.)

    Once it has been completed it will provide you notifications if you had any errors and the specs on this, for example - integrity errors were found and were repaired. (Just for an illustrative purpose)

    I do recommend people to reboot as soon as you complete this, and above all things - keep your OS up to date always!

    =========================================

    If all else fails - while I am only a Windows Certified here and I cannot speak on Mac or other OS Systems - I can advise you the other option is for XP (Microsoft is disconitnuing support here), Vista, and 7 is:

    Going to Control Panel to Device Manager and delete ALL USB port related hardware found on the list after you have backed up and created a System Restore first. Windows automativally will detect and reinstall - this usually resolves the issue 98% of the time.

    At the last resort - is going to Microsoft "Fix-It" (clicking on Windows - select your OS - and then select hardware - install the program and allow Fix It to resolve this issue.


    ===================================================

    < b> TO THE ORIGINA POST APPLIED ABOVE: I do want to make an admendment for I realized I forgot a sentence: It is generally a good idea to contact your OS Manufacturer, either via their website of if you have the info handy that came with your OS; then give them a call first. </ B>

    <i> I hope all this helps! And good luck and do keep us posted!</ i>

    +
    0 Votes
    Kerah

    i have made the two options you posted before but the problem appears again

    +
    1 Votes
    Alpha_Dog

    USB devices pull a good bit of power. You need to check all the combination of devices in another computer. If it works on the other computer, you may wish to try installing a powered USB hub or replacing the power supply to the laptop.

    +
    1 Votes
    Kerah

    this solution enabels me to use the usb sticks for longer time but not much time
    - i made a small edit to the registry under
    HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices
    i removed all the drive letters which not existing in my system and then it works fine but not for long time the problem appears again but after more time.

    +
    1 Votes

    You need to reboot your system for the changes to take affect.

    +
    1 Votes

    You could do a repair.
    Load the disk in the drive and reboot your machine.
    Press any key to make it start with the dvd disk.
    Press the install button.
    Then look down to the bottom left you will see "Repair", click on this and then select the repair option.

    OR:
    Right-click "My-Computer", select Properties.
    Click Hardware. Open device manager. Find your USB network device. Double-click it. Select the Power tab and clear the "turn this device off to conserve power" checkbox.

    Hope this does the job for you.

    +
    1 Votes
    ITOdeed

    I have a Toshiba A205 running Vista HP with four USB 2.0 ports, and this USB assignment problem happens to me on one of my ports when I reboot the laptop. However, the USB port doesn't disappear. It is assigned a different drive letter. It was originally assigned drive letter F, but after each reboot Vista reassigns it to E. This phenomenon happens when an item in one of used ports is unplugged and the laptop is rebooted while the item is unplugged.

    +
    1 Votes
    aravind.pk

    Sometimes, its weird to see that certain Flash drives or External HDDs comes with an installation CD/DVD whatever. I wonder why this is required when those are USB devices or USB enabled. Sometimes, certain flash drives uses USB services, may be, for security purposes on the contents of ur flash drive. So,check if any and try install those. Again, not sure this would help but lets try out that.

    BTW, a general question here... if the question is answered, will that be marked as answered so that the question need not to be answered by anyone else?

    +
    1 Votes
    Awahili Guni

    I know these folks and like myself; we are certified Experts to Masters - and if one looks, they are posting a negative on every single Certified Expert / Master's recommendation and suggestion?

    I find this absolutely an insinuating insult; unless we have a "TROLL" in here?

    +
    1 Votes
    Awahili Guni

    TWO MORE THINGS - One you can do and another if you are not comfortable in doing the first; then try the second:

    First - create a restore point before proceeding - it is easier to go to Control Panel - System - then System Protection and create a restore point faster this way than anything else, just click, click, click and go - name it whatever you want, then I suggestthat you copy and paste if all possible print it out or write it down because it isn't complex or complicated.

    Go to Start - Control Panel, to your Hardware Devices; scrolling down - look for ALL of your USB PORTS - right click, a pop up box will appear:

    (Do this one at a time)

    On the tab panel (usually the last one in most cases but sometimes it's the first one in "advanced" - but take your time to locate it), look for the Driver Info with the options (because some are in the Normal Mode and others run in the Classic Mode is the reason why I am posting in this method). Click on Driver Update, if it asks for a disk, ignore, select Windows Update or let Windows Automatically locate it for you which would include Windows Update. If it says that the driver you have is the best driver or is the updated driver.

    Go to the next one and repeat it until you have completed the list of the USB Ports.

    Remain online - making sure you are connected via Direct Connect (e.g. like cable connection rather than Wi-Fi / Wireless) running on the adapter (power source) and not battery.

    Now in that hardware list - delete them, and reboot; when you return back online - Windows 7 will automatically will install new hardware, you will see this icon on the lower right (standard mode unless you have tweaked it); then go to Windows Update and run a Manual Mode of Windows Update which will automatically search for updates.

    Much of the time, this resolves the issue.

    Sometimees Windows Diagnostics aka "Windows Trouble Shooting" will automatically appear if there were issues or problems. There is another alternate mode if you do not feel comfortable in doing this:

    Go to Microsoft's website and type in FIX IT - click on Windows - Select OS Version of 7 - Option Hardware and Devices, install the program and let it run and repair the issues for you.

    While it will always create a restore point; in case it didn't "fix It" - but it is handy because 99.9% of the time, it does work!

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    1 Votes
    .Martin.

    shorting ports? I had the same problem on a laptop that the USB was shorting, and giving the exact same problems. you could get it replaced with a new port, but that would quite expensive.

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    1 Votes
    Awahili Guni

    He may be right on the dot - Shorting ports; I don't know why any of us didn't think of that one before.

    Kudos for you for posting that one Martin!

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    0 Votes
    TheChas

    We have experienced a few different USB flash drives that do not work with Windows 7 and can even end up with a blue screen.

    If the system the USB drive works on is running an older version of Windows, I would start to consider that it might be a compatibility issue between the OS, USB controller and the flash drive.

    I would see if a different make or model flash drive works with your laptop.

    We contacted the manufacture of one of our flash drives and they provided a work-around using compatibility mode when initializing the specific model of drive.

    Chas

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    0 Votes
    tazyx

    Hi,
    Check this out:
    http://forums.computers.toshiba-europe.com/forums/thread.jspa?threadID=65584
    http://forums.computers.toshiba-europe.com/forums/thread.jspa?threadID=65823
    http://forums.computers.toshiba-europe.com/forums/thread.jspa?threadID=65835
    They have problems with MB, implementation of chipset is POOR ....
    "I got a bad news for you, C650 has a little problem. It suhtsdown the USB ports to prevent over current damage, but C650 do this too early, so if I were you, I take it to an ASP for motherboard replacement.The revisioned one works fine."
    Go to change MB if it is still in warranty.
    If not ... buy other brand (Acer, Asus, Lenovo, MSi).
    Good luck.

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    1 Votes
    LocoLobo

    This hasn't happened to me with a stick. But it has with several USB HD. You might check the power settings.

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    1 Votes
    Awahili Guni

    Some computer manufacturers are coy! They may display an OS (won't matter if it is a Win, Mac, or What-Not - with as many as 6 to 8 USB ports just to lure a buyer.

    Sadly, in this case "LET THE BUYER BEWARE" - ask tons of questions upfront! What you see is not what you always get;

    Let's put it this way, supposed you purchased an OS with 6 USB ports in back plus 2 in front. WOW - what a steal! Is it really?

    What really is behind all of this is the major problem:

    You could end up with having 2 USB ports which are the Main Core USB ports, the other 4 being the Sub-Ports (in the back); while those in the front are "limited access USB ports with limited of you-name-it". It is exceptionally good idea to ask the salesperson to death tirades of question even if he/she is unable to provide you info or data; then make him/her go to the Tech Department and get that info before you buy! (After all - it is your $$$ isn't it? How would you like for me to sell you a huge Hotel in Las Vegas with a nice sandy beach front with a fully loaded Marina where Millionares can park their Yachts? Get the idea? Don't be fooled with what all is in the "specs" or aka info.

    WHY? Specs (Specifics) aka Info, doesn't always provide you all the info you need; they just provide you specs to get you drooling just as a Used Car Salesman would sell you that Lexus but won't tell you that there's a cracked engine they welded nor would they tell you that they had welded some other parts with hopes that you wouldn't take it to the Tech of YOUR OWN for inspection but of theirs if you did elect to do so ... for want of an illustration.

    One option is - finding that "Main USB port" is the issue; usually unless yours was custom built, one can find out via the Manufacturer; if they are honest enough to tell you where 2 or 3 or if you are lucky you have 4 (on newer models) if it is a desktop.

    Try the connections there and see what happens - whether it be hooking up your camera to USB port to a flash drive; trying various things will let you know this is a main USB port. If Printer to Digital Camera works on it and some of the Flash do, except one. The chances are the Flash has gone D.O.A. (I'm sorry to report that - I've had some 32 GB and 64 GB Flashies that have passed away and have learned that "name brands" are no different than "generics", in fact, my generics have superceded in the lifespan of the name brands which I find that a little bit ironic.)

    Give this a shot and see how it goes I am going to make another post of another two options you can do

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    1 Votes
    Awahili Guni

    In Win Vista / Win 7

    Go to Start, in Search - type in "command.exe" (without the quotes) - once it comes to manifestation - right click and run as Administrator and a pop-up will appear.

    Type exactly like this without the quotes "sfc/scannow" - if this is the first time you have run this feature, it will take some time; this will repair everything in the Windows from registry to whatever and yet, you can be online or offline and do whatever you need to do while it's running in the background. (Doesn't take much resources, but I do strongly recommend that you first clear cache files, temp files, run the disc/disck clean up, etc first.)

    Once it has been completed it will provide you notifications if you had any errors and the specs on this, for example - integrity errors were found and were repaired. (Just for an illustrative purpose)

    I do recommend people to reboot as soon as you complete this, and above all things - keep your OS up to date always!

    =========================================

    If all else fails - while I am only a Windows Certified here and I cannot speak on Mac or other OS Systems - I can advise you the other option is for XP (Microsoft is disconitnuing support here), Vista, and 7 is:

    Going to Control Panel to Device Manager and delete ALL USB port related hardware found on the list after you have backed up and created a System Restore first. Windows automativally will detect and reinstall - this usually resolves the issue 98% of the time.

    At the last resort - is going to Microsoft "Fix-It" (clicking on Windows - select your OS - and then select hardware - install the program and allow Fix It to resolve this issue.


    ===================================================

    < b> TO THE ORIGINA POST APPLIED ABOVE: I do want to make an admendment for I realized I forgot a sentence: It is generally a good idea to contact your OS Manufacturer, either via their website of if you have the info handy that came with your OS; then give them a call first. </ B>

    <i> I hope all this helps! And good luck and do keep us posted!</ i>

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    1 Votes
    Alpha_Dog

    USB devices pull a good bit of power. You need to check all the combination of devices in another computer. If it works on the other computer, you may wish to try installing a powered USB hub or replacing the power supply to the laptop.

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    1 Votes
    Kerah

    this solution enabels me to use the usb sticks for longer time but not much time
    - i made a small edit to the registry under
    HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices
    i removed all the drive letters which not existing in my system and then it works fine but not for long time the problem appears again but after more time.

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    1 Votes

    You need to reboot your system for the changes to take affect.

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    1 Votes

    You could do a repair.
    Load the disk in the drive and reboot your machine.
    Press any key to make it start with the dvd disk.
    Press the install button.
    Then look down to the bottom left you will see "Repair", click on this and then select the repair option.

    OR:
    Right-click "My-Computer", select Properties.
    Click Hardware. Open device manager. Find your USB network device. Double-click it. Select the Power tab and clear the "turn this device off to conserve power" checkbox.

    Hope this does the job for you.

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    1 Votes
    ITOdeed

    I have a Toshiba A205 running Vista HP with four USB 2.0 ports, and this USB assignment problem happens to me on one of my ports when I reboot the laptop. However, the USB port doesn't disappear. It is assigned a different drive letter. It was originally assigned drive letter F, but after each reboot Vista reassigns it to E. This phenomenon happens when an item in one of used ports is unplugged and the laptop is rebooted while the item is unplugged.