My USB Ports on my PC aren't reading my keyboard, mouse, or anything? I plugged multiple keyboards in and I know for a fact they arent broke because they work on my other PC's and I can't get into the computer's settings because I need the keyboard to be able to type the password to sign in or mouse to move the cursor. When I turn on the computer it shows the sign in screen but I can't do anything, I've tried restarting and its been multiple days, help?