Hi, first post on here...
I upgraded my Dell XPS 15 L521x from Windows 7 to 10 a couple of days ago and it ran OK for about 24 hrs then suddenly stopped with a 'critical process died' blue screen. The automatic repair didn't work, nor did the rollback to W7 and it won't start in safe mode.
About 10 days ago I did a complete system backup and (I think) made an image of the HD. They are both on an external HD.
What should I do next to restore my laptop?
Cheers