The part of Windows saying it wasn't a legal copy has nothing to do with my program. I had 4 other people report that to me as well and all 4 of them had cracked copies of Windows.
I think the repair that got them was the repair host files since the cracks they where using had stuff in the host files so Windows couldn't talk to the MS activation servers. Other than that my Windows repair tool doesn't touch anything on the system that has to do with activation
As for the pc rebooting over and over. That sounds like a blue screen and it is set to auto reboot. When you start up hit f8 and go tot he Windows menu. There you can choose to disable the automatic restart. This way you can see what the blue screen is.
You said the system was freezing before hand, then after the repairs it is just rebooting (From a blue screen)
This means the next thing to check is hardware. If you have bad memory or bad sectors on the drive then that would explain the freezing and now the reboots.
Have you done a memory test yet and also scanned the drive for bad sectors?
I let you know this problem because I used Tweaking a few moths ago and it was really great, but this time instead of fix my PC it became worse 
than it was.
Which is almost always due to bad hardware or an infection. So lets see if we can get that going
Have you been able to boot into safe mode?
Shane
