How to Use PowerShell to See When Your PC Last Rebooted
by The How-To Geek and David Murphy from Lifehacker on (#5FQX7)
There's nothing like coming back to your Windows PC to find that everything's been refreshed. None of your apps are open. Your web browser tabs are gone, as is your browser itself. That document you were working on? Hopefully you autosaved, because it looks like your system reset for whatever reason.