Basically woke up and my keyboard won't type anything. The keyboard is connected to the usb port and was working fine yesterday. Further inspection in device manager reveals that it is meant to be working fine... except it doesn't.
Important: Since my webcam driver was making my MIDI cable not work I followed this http://i.imgur.com/0jPnC.jpg and deleted: the "Lowerfilters" in "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class{4D36E96C-E325-11CE-BFC1-08002BE10318}" and the "Upperfilters" in:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class{4D36E96D-E325-11CE-BFC1-08002BE10318} everything was working fine as usual untill this morning and reinstalling the drivers didn't help... I can't solve this problem... can YOU?