Ok so recently while I was doing my normal work online, my computer just straight up froze. I went to turn it back on, and it went straight to the login screen like normal, then went to the start up menu as normal. As I start clicking again, it freezes once again, this time when I restart it, it won't even load the login screen. The original operating system was Vista and I grabbed 2 disks in the mail to upgrade to Windows 7. I cannot find my recovery disks either. I went and bought a new hard drive and borrowed windows Xp disks from my friend and I'm getting some of the same errors from before. The computer will start up and I'll put the windows Xp recovery disk in and then it will say "No disks for raid to use, raid disabled." Then go straight to a black screen that says Reboot and select proper boot device or insert boot media in selected boot device and press a key. Can anyone please help me, I've tried everything, reconnecting cables, buying this new hard drive. I just don't understand what's wrong. Thanks.