Hello Interesting problem... Went to do a restart on my primary snapshot and got to 'CTR-ALT-DELETE' box- Hit the key combo and -nothing- no response Restart...same issue.. Mouse moving, but stuck on the boot window OK: restart in 'Last known good..' same issue...stuck at CTRL-ALT-DEL ?? Attempted restart in safe mode..goes to 'CTRL-ALT-DEL' box Wot? That shouldnt happen afaik Google, google, google... many posts but few solutions OK: Tried booting into snapshot from 10 days ago: All good! Seems I have corrupted that snapshot somehow ?? I know: should have better FDISR snapshot backup system I have a Full Shadow protect image from yesterday. Lots of emails seen/previewed and deleted over last 24/24 No tricky surfing on that box Only new app/install is Webroot Av replaceing prevX. Heh: as usual with computers: "never happened before " !! WHat happened? Why does secondary boot ? SHould I restore from S-P? Regards PS: apart from HW problems: motherboard etc, the only info I can glean is that I must have rebooted in the middle of a down load or update of some tool. MS autoupdates off. Security apps on manual updates except Webroot ?? DEleted all MS hotfix uninstallers recently: followed instructions: used CCleaner REbooted as I thought some simple operations were looking sluggish in explorer XPSP3 on that box: fully utd 6 yr old Lenovo Think Centre: all lenovo tools disabled. Currently running Av scans in booted snapshot. Have observer impression that currently booted snapshot also feels 'sluggish'