I have been having 2 problems with keyboards/mouse on my new Windows 8.1 build. I have been able to replicate this using 2 different USB keyboards (Logitech G15 and Razer BlackWidow).
Problem 1
Every once in a while, either my keyboard or mouse will stop responding and wont react to key presses or clicks. Will have to either reboot the machine or unplug and replug in the particular device.
Problem 2
Sometimes when I am typing, a key will get "stuck" and type out several times on the screen. So for example, if I was typing the word update, it might look like this.
updattttttttttttttttttttttte
At first I thought it was the keyboard, but since I have switched and just had it happen on the new keyboard.
I have also switched USB ports on my mobo and that didnt seem to help it.
I am using the default Windows drivers as well for the keyboard and mouse.
My BIOS version is F7.
Any help is appreciated. Thanks