Hi, I have been using Windows 7 with some pretty aggravating issues. I reformatted the OS and it was working fine for about a week until my computer at startup started going to blue screen, with a message stating "physical crash memory" dumping to disc and it tries to load to 100 and that's when I would have to shut off the computer. This happened before and after a restart it would work fine again, but now it happens everytime I boot up the PC. I tried reinstalling Windows 7 by doing the custom installation and formatting the disc partition but once it copies the windows files and installs the OS again it goes to the blue screen with the physical crash dump. Even worse, now it says the boot MGR is missing and there are lines going down through my monitor everytime i reboot. I tried deleting the disc partition hoping it would start from scratch but the problem still persists. Can anyone please give me any ideas and what could be the cause of these issues? Please, thank you.