I have windows 7 installed on my desktop. It used to run fine but I have been having problems since a few days. Whenever I start my system, it freezes either while loading the desktop, or a while after loading it. I tried using the restoring feature, it worked fine for a while, but then again it started doing the same thing. Any ideas what might be the problem and what could be the possible solution? I do not want to lose my data.