You changed the ownership of the drive from TrustedInstaller to yourself? That's a quite uncommon thing to do.
The common precaution against this situation is to have 2 accounts with administrative capabilities. Then if one is messed up, you can use the other to fix it. although I doubt if it would help here.
The usual way out of situations like this is to reinstall Windows, if you didn't make an image backup to restore.
I recently right clicked on my c drive through my one and only account and went into security > advanced > owner > edit and changed the ownership 2 my account after that it has all been a mess, i cant uninstall any program, cant open regedit dont have rights 2 do anything on mu computer....HELP!!!