After I have installed some program (FlatOut 2) it asked me to reboot, so I did. After telling the computer to reboot, I walked away from my computer for quite some time (probably over an hour) and when I came back, I got the login screen as expected. However, it appeared that FlatOut 2 was not installed and after some more usage of my computer, I found that some downloaded files and desktop shortcuts were missing. After a while, it also seemed like my computer became a little slow, so I tried to restart it, naively hoping that it would make things faster. When it tried to restart, I got a dialog that said that Windows could not be started, and that it was going to look for problems and repair them. This took over half an hour and since no headway seemed to be made, I walked away again for maybe 10 minutes and when I got back I could log in again. To my very big surprise, there were now icons on my desktop from the time before the problem started, but not extra ones that I made after. It seems to me now that Windows probably couldn't start both times that I rebooted and that it did a system restore or something. What puzzles me however, is that there are apparently two different valid restore points. If that is the case, the last one should always be used and there should be no problem. This is all speculation on my part and I would appreciate it if someone could help me out with this issue, because right now I'm kind of affraid to turn my computer off, because I have no idea what it will be like after I restart it. Thanks!