Computer was freezing then windows corrupted and received error messages

Ok, I haven't downloaded anything or opened any suspicious e-mails or anything. Haven't installed any programs either but here's what happened. The other day my computer started going very slow and freezing a lot. So I decided to turn it off. when I turned it back on Windows wouldn't start I got the message saying /windows/system32/config/system is corrupt. So I put in the re installating disc. I ran the diagnostics on the disc and it said it was not a problem windows could fix automatically. I also formatted my harddrive. When trying to reinstall windows kept getting the message "windows is unable to find a system volume that meets it's criteria for installation" where I clearly had over 100Gb free. I also ran diagnostics on the BIOS and got two error messages over and over again one was 0F00:0667 and the other was 0F00:0244 I remember the second error code the message said something like uncorrectable data. What the heck is going on and why can't I get windows reinstalled again.