Welcome to the Seven Forums, ZeroHQ.
It would take the lifetime of an individual and still he may not have learnt all the secrets and tricks in the Registry that you are looking for.
To learn just a few of them, you look at Google
Please be warned that Registry editing is a tricky matter and if you mess up your computer in doing so then please don't blame me. It is always wise to back up the Registry before editing so that you may be able to restore your current Registry in case of anything going wrong.