For the second time I have lost all saved files and settings on my computer. I should say first of all that I am a teacher using a district-owned computer, and although I can install and run programs, save things, etc. I am restricted from using things like System Restore.
This first happened in October. I was out of the country for two weeks and the computer was turned off and stowed in a closet in my house. When I got back and booted it up every trace of my existence (saved documents, bookmarks in web browser, etc.) had vanished.
Last week we had spring break and this morning when I booted it up again the same thing had happened. The only similarity I can see is not being used for a week or so, but other than that I'm at a total loss for why this is happening. Since the first catastrophe I'm backing everything I do up on a flash drive, but I would still like to figure out what's going wrong. Any ideas?