Problem: USB ports are non-functional. They were working find and for no
unknown reason by me just stopped working.

Thanks for those who have posted information to correct this problem. I
have tried them all to no avail.

I have a Compaq Presario 900Z laptop with the following system:
Microsoft Windows XP, Home Edition, Version 2002, Service Pack 2

All software programs are updated and I have tried all the corrections
listed on Windows & Compaq Help Centers. I have read as much as possible and
still I’m at a dead end…the USB ports are not working.

If anyone has had this problem and corrected it please post how to
information.

Thanks.