I know this is an old old post, but I had to share this.

Came upon an xp home machine, that nothing else worked, fixing it.

I ran the subinacl (in regular mode), rebooted, and everything was perfect.

I know it is said it doesn't work on XP but I figured what did I have to lose? It saved gutted it out and reinstalling everything, including the OS. It took about 30 min.tops.