I have two computers that are identical, one computer hard disk died so I removed the hard drive from the other computer to the one that had its drive die, now that I boot up with it, it won't start, it shows a startup repair and it doesn't fix it and remains on thag screen. Sometimes it would load a second from the windows 7 boot up animation but it only shows a second before rebooting the PC by itself to repair the issue. So what could be the issue? (They're both Windows 7)