Proste to tam asi (nabeton :) niekto "cistil".

http://www.sevenforums.com/drivers/235898-windows- 7-can-t-find-simple-usb-keyboard-driver-2.html?s=0 ca18b020b5bb9691742a0f136921a3c

Had the same issue with my keyboard. Keyboards worked fine in BIOS and boot menu, until the windows logon screen appeared. Windows didn't load a driver, and yellow marks in in device manager no matter what keyboard I connected.

The usb.inf and usb.PNF files were somehow missing from my Windows/inf folder. I restored these from the installation media, and TADA... - it now works again.

I got a customer with same issue. The problem only appears when it is connected to internet "USB Keykoard - obtaining driver from windows update".

If I unplug the ethernet cable, then plug in the USB Keyboard, it works. So just need to disable obtaining driver from windows update.