I was away for the weekend and when I came back this morning my PC booted up just fine but I couldn't input anything via mouse or keyboard in Windows. I've already tried rebooting, different usb ports and changing usb settings in the BIOS - but neither has helped. In my BIOS screen both mouse and keyboard work just fine.
I'm on Windows 7 64bit and I have a wireless Microsoft Keyboard/Mouse-Set with a usb dongle (both use the same dongle). My mainboard is an ASUS H81-T. My Setup has been the same for over three month and I've never had any problem nor did I install new software recently. I even updated my BIOS because there was a newer one out and I hoped it maybe will fix the issue but sadly it didn't.
What could be the reason for this behaviour? Has anyone faced similar problems?
EDIT: Just tried another usb keyboard but it also did not work.