How long does it take to get Last Known Good Configuration

[colleen50]

Hello,
How long does it take to "restore computer to last known good configuration"? I've been waiting about an hour and still see nothing but a black screen and the white arrow for the mouse.

 

[aford10]

If you selected that from the boot menu, it shouldn't take more than a minute or two. It's likely locked up.

Try restarting into safe mode.