I found out this weekend that a bad computer mouse can bring down your computer. I use a laptop computer, light and portable, but I use a wireless mouse and keyboard. The mouse has been misbehaving, a single click made multiple things happen. Like reading here in a thread, but a click to go back one step goes back more.
Anyway way, now the thing wasn't doing anything. Couldn't click out of a window. My computer has a touch screen. I tried that. Finally had to turn the power off. Restarted and it didn't get any better. I am thinking the computer is broke. Fortunately , I have another mouse, although it has no keyboard which is why I don't use it. The computer now working again. Off to Best Buy and got a new set.