Yesterday my external hard drive, flash drives, iPod, and memory card reader, which are all USB mass storage devices were working fine. However, today none of them show up in explorer, and when they're viewed in device manager all of them have an error message that says, "Windows cannot load the device driver
for this hardware. The driver may be corrupted or missing. (Code 39)". I have already used system restore to go back to yesterday and it didn't solve the problem. Also, my flash drive is made by Sandisk and has a second partition that mounts as a CD drive, and this works properly. Does anyone have a solution to this problem? This is very bad for me because I can no longer back up my computer until it recognizes my external hard drive.
Thanks for the help!
Edit: I am using 64-bit Windows 7