I gonna get some sleep. It is really late over here. I hope you was able to find the registry backups. If not, whatever. Your system is at least running. Just install all the drivers, software and updates again. I know, it will take several hours again but at least you really have a good reason to be angry, spending over 48 hours with repairing the system.

Have a good night and at least a wonderful sunday!

P.S.: Wonderful, no backups.. Please don't forget to make a backup of your data before you wipe out the disk. I'm sorry that I wasn't helpful at all. In the next life we will just try it with unplugging the hard disk. It is much easier because you don't have to use command lines.