Windows 7, 64 bit will not go to sleep (or hibernate) automatically. I can do it manually just fine. I've Googled and Googled for a solution, checked and rechecked advanced settings in Power Options, but no success. Ideas, anyone?
So you want it to go to sleep on its own?
in Control Panel you go to Power Options, Change Plan Setting and you should see an option to decide how long the computer is idle for the computer to go to sleep on its own.
