When I start Windows,it is loading.After some time it restarts automatically(just like superfast restart in the app. 'superfast restart') Sometimes it sucessfully loads but but when it displays the massage "welcome' it again restarts.I cannot acces Safe Mode.When the "Mup" is loading, there is a immediate restart. I cannot acces anything.I reinstalled Windows but the same thing again(didnt formated other drives).I can acess from the advanced options in the 'Domain Controllers only' and posted this question from there.I tried the Blaster worm patch but it displays that Windows is SP3 and this patch is old. How to stop this problem.