I started having the issues of my desktop turning itself on in the middle of the night, and the infinite boot loop a few weeks ago. I have tried a few of the fixes online such as restoring, checking task scheduler, and running the startup fix on the Windows disc. The pc will also randomly shut down once it loads Windows (put itself through the proper 'Windows is shutting down', not the sudden shut down of a hardware failure). Tonight I also got the bizarre happening of a black screen shortly after startup, with a small in the task bar saying something like 'This Windows version is not genuine'. I am using 7 Home Premium 64bit. Any suggestions are greatly appreciated.