Just put together a new PC last night, only to find out that during Windows 7 installation the keyboard and mouse did not work.
They work in the BIOS screen, however. I had them plugged in through the back USB 3.0 ports, and I had suspected that was the problem. I had to use my front ports as USB 2.0 and they worked fine in the installation.
I installed the mobo drivers once windows installed and the USB 3.0 drivers worked... until I updated windows 7. Now they are unresponsive like before: works in BIOS, not in windows.
Numerous google searches have left me hours into this with no solution. Any help would be greatly (GREATLY) appreciated!
Did you try to reinstall the usb 3.0 drivers? Somethimes drivers can be knocked out with an upgrade or an install of another hardware part. So enen though you had installed the drivers and it was working try to reinstall them again.