How do I remove the Windows Explorer Toolbar?
Normally, I would try to put the steps here myself, as is normal practice on this site, but in this case, the answer is very detailed, and somewhat complicated, so I will just post the link. It is also EXTREMELY well-done, so I will not try to re-create such a great answer (one of THE best I have ever seen on the Internet).
I would follow this link as it seems to do exactly what you want:
Lastly, I would say, make sure you have a good System Restore point AND backup before you try this.