All you need is a master code generator if you have your IMEI. Some kind souls over the net even design an application for that and is available:
http://www.unlockme.co.uk/securitynew.html
I guess he wanted to boot windows from his USB sticks not running programs off his USB stick. You can have bartPE on your USB disk
You can have a lot of topics off google:
http://www.google.mu/search?hl=en&q=bartpe+on+USB&btnG=Search