I've got a SanDisk Mini Cruzer that no longer is recognized by Windows XP.

I've got a SanDisk Mini Cruzer that no longer is recognized by Windows XP.

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nobusConnect With a Mentor Commented:
test it on different usb ports, or test the ports with other usb devices
check in device manager for errors, if so delete all usb entriesn reboot and test
here a couple of things to try :
a system restore to a previous date
unplug pc from power for 30 minutes
then test
choose no to NOT overwrite existing files.
 copy the USBSTOR.SYS from a working PC to the bad one. (you can move the existing one for testing
normally located at c:\windows\system32\drivers
copy C:\Windows\Inf from aworking pc to the bad one.

if this does not work, you're in for a fresh install
have you tried it in another machine?
I have seen the issue if you have multiple mapped drives.  If you have these you can remove a couple temporarily to see if this is causing the problem.  If it turns out to be the problem you can map your Mini Cruzer to a higher drive letter using disk manager.
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jpertchikAuthor Commented:
The device works in another machine.

The device does not show up in disk manager.

There was an issue with a wireless USB mouse on this machine a few months ago.

I beleive that to some degree the USB buss is baked (software-wise, not hardware).

Any ideas?

You can delete all teh USB controllers and they will reinstall themselves properly, if it is a software issue.
i had a similar problem. I plugged in my usb device backwards and it fried the usb bus. It reacted by not recognizing anything usb. I had to replace my motherboard to fix it. So if it won't recognize lots of usb items, this may be the issue.
Other option is to buy an add in PCI - USB card for 10-$20  ( cheap on ebay ), and that should resolve your issues.

I hope this helps !
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