Windows 7: Blank screen after login and partition changes

Hello, I have one that is similar to others, but not the same and not fixable by anything that I've seen here so far.

I originally had XP and 1 drive and I was chosen to be the guinea pig for upgrading to 7 (RTM). 7 would not install on the same partition as XP, so I partitioned my drive with Part A with xp on it and part B with 7. Over the next several weeks, I continued to move things from XP to 7 and eventually never went back to XP so it was time to get rid of that partition for good.

I deleted the Part A, expanded part B to take up the whole drive, marked it as the boot partition. Rebooting told me there was no BOOTMGR so I used the repair DVD 3 times to fix the various issues it found.

Now when I boot, I get to the login screen. I login, it takes a long time "preparing desktop", then gives me a blue colored screen with a message in the lower right corner that says "This copy of Windows is not genuine" even though it is.

I cannot use ctrl+alt+del nor ctrl+shift+esc to bring up task manager, it simply doesn't work. Booting into safe mode AND safe mode with command prompt yields the same results.

I booted to a linux distro from USB and copied the registry to look at the Shell and UserInit settings as suggested in other posts, but they are correct.



Any ideas? I really do not want to reinstall everything that I've spent the last 1.5 months installing.

Thanks in advance!

Update: I forgot to mention, it is not just 1 user account this happens on. It does it regardless of which account I log in with.