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missing wdf01000.sys on XP system

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by lizzzi

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Trying to install Set Point 4.7 from Logitech. Cannot because WDF01000.sys missing (according to Logitech tech support). Searched my drives and it indeed is not there. In researching it appears to be a Vista keyboard driver and my O/S is XP. Getting many error messages because driver for my keyboard and mouse combo cannot be found. What can I do?

14 replies

by lizzzi

My keyboard and mouse are made by Logitech. The software is Logitech which I tried to install from the CD included with the keyboard and mouse. They don't seem to be supporting their own product. Logitech tech told me as long as that sys file is missing there was nothing he could do. Isn't it illogical that the software reinstalls that particular file, but if it isn't on your system to initially, it won't reinstall it?

by lizzzi

Thank you. I have been to the Logitech forums and the only problem is that the file they are telling me to rename is missing from my system. I can't understand why the software will reinstall this file if it was previously on the system, but won't install it if not there. Seems to me Logitech is not supporting their products. I was told by Logitech tech support to try to find this file at Microsoft or online somewhere. I've tried but have not been successful.

Appreciate any assistance you can lend.

by older mycroft

Having suffered from instances like this over a great many years: ...

[b]Check the installer routine itself - have a rummage through the code and see if there's a batch file controlling the show.

You never know - there might be a spelling mistake / logic contravention sitting there causing all this difficulty. It might be [u]pointing to the wrong installer directory[/u] for sourcing one or more installation files.[/b]

[i]Many times over, I've found the installation routines for Encyclopaedia Brittanica to be riddled with mistakes, preventing installation to any but the most stalwart user![/i]

by lizzzi

I'm moderately aquainted with the installation language but am not sure how to check the installer routine. Could you give me some pointers? I think it's strange that the routine doesn't include this sys file since it's so critical. My husband also has a Dell XP computer, and that sys file is missing from his too.

Any assistance greatly appreciated.

by older mycroft

Use 'Windows Explorer' (or whichever other file manager is your preference) and have a look down the directory tree.

You [i]may[/i] find a batch file (it may NOT be a .BAT file, but it will still be a script - a text file setting out a sequence of directories elsewhere on the installation disc) that determines WHERE the installer goes to find various files that are required in the installation sequence.

Somewhere in this batch file (you'll have to check for each file being WHERE the batch file SAYS it is - if it's NOT THERE the installation routine won't go looking for it elsewhere, it'll just ignore that file and move on to the next in the sequence. So - if you can find where [b]wdf01000.sys[/b] DOES exist, you can edit the batch file to point to the correct location, by using Notepad then saving the altered file.

Of course, since an optical disc is Read Only, you'll have to copy the entire installation disc into a folder of your choice on your hard drive, then run the installation routine from there. That way you can alter a batch file then save it back to the hard drive.

[u][b]*Afterthought[/u][/b]
Don't forget - once you have copied the installation disc to your special folder on your hard drive, once you find the script file and start editing it, you'll ALSO have to find every instance of the drive letter of your optical disc and CHANGE that letter to the letter that belongs to your hard drive. Otherwise the installation routine will head straight back to the optical disc in its search for individual ([i]still missing[/i]) files.

To make matters a bit more simple, you could copy the entire installation disc to the root of a thumb drive, that way any required alterations to the drive letter + directory tree, would just be a matter of changing the drive letter (not typing in multiple instances of a possibly complex directory structure also).

[u][b]**Another Afterthought[/u][/b]
There is another way you could approach this - does the 'File Missing Error' indicate where the file is missing FROM ?

If so, you could just use 'Windows Explorer' to examine the directory structure of the installation disc and hunt down the missing [b]wdf01000.sys[/b].

Then simply COPY it to where it should be.

Then try running the (complete) program.

by lizzzi

Thank you so very much for your assistance. I will attempt to follow your instructions and hope for the best. Keep in mind I did a search on my cpu for that file, and as far as I can ascertain...it does not exist and never did! Why would the software re-install the file if it had been there, but not if it's never been there. I'm perplexed. Logitech says it's a Microsoft file. In another forum I read, someone had a similar error and fixed it finally. He bought a Microsoft keyboard. End of problem. <;-)

Here goes!

by lizzzi

I did a thorough search of the Logitech software CD and found no .bat files at all. The only thing I found are a couple of setup.exe files, which, of course, I cannot read. I've decided to uninstall all my Logitech software (a couple of cameras, etc.) and try to start over. I did find their drivers in a DRVSTR folder in the Windows directory. These folders are full of .inf files. Unfortunately, I don't know which ones are for which hardware, so still perplexed.

by ic-it

You may need to manually clean any of the failed install files out. Then try the 4.60 drivers or the 4.70 from the ftp site.

ftp://ftp.logitech.com/pub/techsupport/mouse/

by lizzzi

Thank you for your assistance.

How do I clean out the ol, failed installs? I thought of that, but didn't know how to do it.

Lizzi

by ic-it

folders in the c:\program files\common files and c:\program files that have Logitech and delete those remanents.
Download a registry cleaner like ccleaner and clean the registry (back it up first, just in case).

http://www.ccleaner.com/download

by lizzzi

Now I've done it. I messed around too much with the unknown. I've lost all my dbx files in Outlook Express. Not sure how that happened, but it did. I am really in a pickle now. When I try to restore...system won't restore for me. Any suggestions? I have the initial dbx files but none of the folders I made nor my saved emails...for several years. Maybe I should have just put up with the annoying messages??

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