Okay, my turn to get some help.
Came back to my laptop after the screen locked automatically (timeout set to lock screen after 30 minutes).
When I moved the mouse to turn the screen back on, I saw "Press CTRL + ALT + DELETE to unlock this computer
". I was like "What the crap?" I've never had that setting enabled.
So, I hit Ctrl + Alt + Del as required (we always have to do this on university computers, but I've never set this on mine) and logged in. After a little head scratching to remember the correct command, I typed control userpasswords2
into the Run box and saw this:
Notice how the box to uncheck that option is greyed out and unclickable. Okay, now I'm flipping out.
I knew there was another place this setting existed, so after visiting secpol.msc
, I was able to put it back: http://img194.imageshack.us/img194/1441/enabled.png
BUT, the setting I looked at before is still greyed out:
What the heck is going on? I haven't touched a single system setting in a long time. I walked away, came back, and suddenly I was required to do Ctrl + Alt + Del
to log in for no apparent reason.