I run a Gateway desktop. A few days ago I unplugged my ipod SUDDENLY, and right after that, all my USB devices stopped working. I know there is no proble whatsoever with my ipod, tablet, mouse, etc because I've all tried them on different computers and the power works. Right now I use a non-optical mouse on a P2 (wrong name?) outlet, one of the green ones. Windows does not even detect new hardware. There is no bubble or anything that pops up when I plug in a device. It has BECOME incredibly frustrating.

I've been searching online non-stop trying to find a solution and none have worked so far. I deleted the USB root hubs and ports so the computer would reinstall them, tried a few drivers, even fiddled with the BIOS PNP settings and no cigar. Please help. I'm really not computer savvy so some simple enough steps would help alot.Can you give us a little more information about your system...SPECIFICALLY, Windows operating system?I READ a lot about--->KB918005(v4) <---update for XP and the USB
related problems.

Uninstall the optional update KB918005(v4) if recently installed.

I am assuming you have Windows XP.Yes, I have Windows XP and I don't think I've installed the KB918005(v4) ..So, what all updates do you need from Microsoft?

Have you used the Automatic-updates from microsoft?

In the,Control Panel,Double click on Automatic Updates,
and see how it is set.

The updates not only help with security but, they also
help with hardware problems....etc..