“It seems that this problem is because the wdf01000.sys file itself has somehow been corrupted.[br]
All you should need to do is obtain a copy of the file from a working install of Vista. It is located[br]
in C:\Windows\System32\Drivers. Just copy it to a CD or USB drive. Boot your computer from [br]
a Windows Vista repair disc or from your Windows Vista Installation DVD. On the second screen[br]
select Repair. Skip the automatic startup repair and click the option to open a command prompt.[br]
Now change your directory to C:\Windows\System32\Drivers and rename your wdf01000.sys to [br]
something like wdf01000.old. Now copy the wdf01000.sys file from your CD or USB drive. Exit [br]
the command prompt and reboot the system. You should now be up and running.[br]
[br]
NOTE: Make sure the version of Vista you get your file from is the same version. In other[br]
words don't copy the file from a 64bit version to a 32bit version etc.”