Had something like it happen recently on my laptop. Runs on Windows 7. Started crashing after a power outage... and then another one happened. Note: both of these happened on regular days, it wasn't storming or anything like that.
This error showed up twice when I first started my computer:
Location is not available
C:\windows\system32\config\systemprofile\desktop refers to a location that is unavailable. It could be on a hard drive on this computer, or on a network. Check to make sure the disk is properly inserted, or that you are connected to the internet or your network, and then try again. If it still cannot be located, the information might have been moved to a different location.
The flash drive mention makes sense. Used two of them recently after events just to save important info onto them.
@ Evil Headhunter: Definitely. Used the older flash drive before without any problems. Same with the new one. Could the outages have scrambled my laptop bootwise?