Hardware
by vincem2001 Accepted solution
by oh smeg Accepted solution
If this is a USB Connected HDD then the most likely issue is that the drive doesn't have enough power to run it.
If this is a 2.5 inch HDD and the USB Cable has 2 USB Plugs at one end both of these USB Plugs need to be plugged into different USB Sockets on the M'Board. The one in the Middle is a Data & Power Lead and the one on the end is just a Power Lead so if that is all that is plugged in then the drive is getting power but has no data connection.
Even if it is the middle USB Plug that is plugged in there may not be enough power to power the drive and you need to plug the other USB Plug into a separate USB Socket.
If you are connecting to a USB Hub and it isn't a powered Hub there will not be enough current available at the Hub so you'll need to either plug this into a Powered USB Hub or directly into 2 separate USB Sockets on the M'Board. Even if it is a Powered USB Hub you may very well still need to plug 2 USB Sockets into the Hub to get enough Power/Current to run the HDD.
Also if the HDD Enclosure has a plug for an external Power Supply you should get and use an External Power Supply to prevent damage happening to the drive inside the case.
If this is a 3.5 Inch HDD and you do not have a External Power Supply the Drive [b]Can Not[/b] work. These drives need 12 V DC to run and the USB Connector only supplies 5 V DC so you need to use the External Power Supply that came with the enclosure.
A USB Socket is supposed to supply 5 V DC at up to 500 Milli Amps and most 2.5 inch Drives will work with 500 Milli Amps but if there is lass than 500 Milli Amps you'll need to plug in another USB Plug to get sufficient power and even then it need to be plugged into a different USB Socket.
If this isn't a USB HDD then look in Drive Management after you plug the device in and see what is shown there. Even if it is a HDD you should look here to see if the Partition Tables have been corrupted by low current of improperly Dismounting the Drive. If you are prompted to format the device the Partition Tables have been corrupted and if the Data is [b]Important[/b] you will then need to look at your options. But with all Important Data it's better to send the device to a Data Recovery Professional and pay them to recover your Data.
If you mess with the device and are unsuccessful it will make the cost of Recovery higher and also make it more likely that some or all of the Data may not be possible to recover.
However if it would just be [b]Nice[/b] to recover the Data you can tear into the drive with [b]chkdsk /r[/b] from the Command Prompt on the Drive that you want to attempt to repair and if that doesn't work you can then attack the device with Data Recovery Software to attempt to recover your Data. Of course if the Software that you are using doesn't recover your data you can then just Format the device and use it from there without attempting to recover any of the data that was previously on the device.
If you want suggestions for Data Recovery Software here is a very short list of what is available but there are many others that you can look at and this is not a definitive list.
While the last 2 are from the same company they are very different products. Win Hex should only be considered foe use by someone who knows Hex Inside Out while Davory is a great cheap General Purpose Application.
Personally I prefer the On Track Option but it's anything but cheap. However because I use this type of software a lot it's paid for itself many times over by now, for a cheaper option Spin Rite from Gibson Research or Stella have both very good reputations by other TR members.
Col
by tobif Accepted solution
It is possible that your administrator (who doesn't allow you to run regedit) has blocked your computer from mounting USB drives.
This can be done via Grop Policy.
If this is the case, and your intended usage is in line with your company policies, then you need to contact your administrator, who can help you.
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