When I went to bed last night, I had just stopped using my desktop computer and everything was working fine. When I woke up, I was unable to use my mouse or keyboard in any type of fashion, but am currently using the same mouse and keyboard on my laptop. There was, however, a message waiting for me that said something about the device was unable to install. So unless there was an intruder that tried to install some sort of hardware while I was sleeping, I am at a loss as to what caused this. Any thoughts? Thank you guys in advance and let me know if I need to post some specs of any kind...though I am unable to get into my desktop because I have a password login and cannot use my keyboard.