My USB Ports don't work anymore! Plz help

ok, so all of a sudden - BAM! they don't work nomore
everything seems normal in device manager... and I just reinstalled drivers and still same thing..
can plz anybody help?

here's is thread, I created at Gamespot - I had some advices but they didn't work for me

 

Where you trying to install some off the wall driver when this happened? A friend ran into the same type of problem when trying to install a delcom driver one time. We ended up having to delete these files from system32 folder oem?.inf, oem?.pnf, usb.pnf, usbiods.inf, usbiods.pnf, and usbiods.sys.The ? refers to a number that will be different on each computer. Then extracting usb.inf from the cd with this command extract "usb.in_ usb.inf" to the system32 folder. Then install the driver and it worked out.

 

no, i wasn't tryina install anything - it just stopped working

 

guys, PLEASE Help me! i can't print anything, charge my mp3 player-
plz help somebody!!!

man, we getting really dependable on computers

 

If none of the USB ports work:

1. try removing them from the device manager and restarting.
2. check the system's BIOS to see if they weren't disabled.
3. purchase USB PCI card.
4. replace motherboard.