I want to generate a new account ID... I share my computer with my roomate...

Anyhow he is banned fom everything, and is screwing up my accounts on my favorite servers... I wrote down his account number, tried reinstalling, deleting the reg keys etc.. but the damn thing keeps generating the same code and wont let me change it to anything else.

I figure its based on MS product code, and OS product code or something... Thus its making the same number over and over.

Is there a formula, or a keymaker of some sort out there?