When I turned on my computer today, I got a blue screen with a message saying Microsoft registry checker. Updated recent backed up file. Restoring system files, press enter to restart.

And the problem continues, I hit restart, and I went through this whole cycle no less than 23 or 24 times. (not kidding either) It's quite frustrating.

It also happened yesterday, but it let me in after about 6 restarts.
Even 1 restart is 1 too many in my eyes.

What has happened ? or better yet, what can I do ?
Can I somehow get the registry checked for problems ? I've used Regclean, but it hasn't done anything for me.

I really don't have the patience in me to reformat and install everything on my system again.

Please help
Thanks