Not sure what the problem is but I am posting here mainly for support for common issues or known issues with windows loader for Windows 7 Ultimate x64. I installed windows 7 then used the latest version of Windows Loader to activate it. It activated fine but now when I boot up most of the time when it tries to load the user account for the PC it instantly powers off and resets occasionaly it will actually get to the desktop and then it will work fine. I am really just asking if it's possible that the windows loader is doing this? As from what I understand it is around that time that it tricks windows. Here is my motherboard MSI Z77A-G43 Z77 I saw somthing in support about UEFI boards having issues or something. I am also trouble shooting the hardware of the PC currently it is doing memtest86+ to test the RAM I will swap also just swap it with RAM from my working PC to make sure. I ran Seatools on the hard drive all the test passed but I am going to swap in a new one just to test. I also have another PSU I can put in to test. The only components I can't test is CPU and Motherboard but they are both brand new so if I run out of options I will take a 50/50 chance and RMA 1 of them. I am also looking in to the drivers I herd it might be sound driver issue. If you need any more information I will give any I can. I normally would just troubleshoot the problem on my own but this PC is for my GF's birthday and I don't have enough time before I need to give it her. Any help or suggestions are much appreciated.