windows blue screen bad_system_config_info

Ok. Ill have to download a version of windows 7

I have used the disk before. Would a scratch on the disk cause this?

Use Step 1 and 2 from Clean Reinstall - Factory OEM Windows 7
then follow the steps to get a perfect reinstall.

In addition wipe the HD first with Diskpart Clean Command
from the installer's Command Line.

Will that even work with a burnt copy?

Will what work?

Oh is that a link to a OS to download?

Yes, the official installer if you have a license. How is your Win7 activated?

No key.

You'll need to buy a key. It won't work otherwise.

Ok will do!