Sorunumu aşağıdaki cevap çözdü:
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.
