I have had my Dell xps8700 for about one year and I still can't figure out why it won't go into sleep mode from the desktop. It will if I leave it in the log on window. Any ideas?
1. Right click the Start's button at the left bottom of page ( or press windows key plus X key at the same time).
2. Click Power Option
3. Click " Change when computer sleep "
I have tried all that and other things but nothing works.