I guess you are talking about installing Windows 7 from a USB drive. There are a lot of tutorials on the net for that. Check this one out. I've tried it in the past, and it works.
Or you can try this method too. It will be much easier.
Hi Guest we just wanted to alert you to a major change in the forum. We will no longer be allowing the posting of outgoing links. Please use the attachment feature to attach media to your posts.