Keyboard and mouse won't work on welcome screen

OK. And still not working?

So, wireless mouse/keyboard doesn't work, wired USB mouse/keyboard doesn't work, and PS2 wired mouse/keyboard doesn't work? Is that correct?

When was the last time the mouse and keyboard worked. What had you recently done/downloaded when the problem began?

It went out as you were using it or you shut it down and upon re-booting nothing?

Golden said:

OK. And still not working?

So, wireless mouse/keyboard doesn't work, wired USB mouse/keyboard doesn't work, and PS2 wired mouse/keyboard doesn't work? Is that correct?

Can you confirm the above?

I would try every available usb port for the wireless dongle, back IO ports first then front. Re-boot each time if changing it while on nets same results.

I'm off to do a front brake job on my car (first time) so I'll be out for hours. If the above fails then try to borrow a wired keyboard known to work as well as the wired mouse and see if that works. If not then my concern moves to the mobo. Open up the case and check for it's dust condition and if heavy please clean (un-likely to be it but heck can't hurt) Look at the mobo with a bright flashlight and magnifying glass for any heat or burn marks on the board, sniff around when opening and get down to the board and sniff for that burned electrical smell....very distinct. I'll check back later and good luck, I hope to heck it's not a burned mobo. Let's hope it's a simple thing of finding a good usb port and then maybe the rest will play nice after that?

Your motherboard has ps/2 ports so because ps/2 mouse and keyboard are so cheep I would buy one. Everybody should have one or two of each tucked away just for such occasions.