This is the solution posted on the web.
Win 7 login error: "You cannot log on because the logon method ...."
2. Expand Computer Configuration\Windows Settings\Security Settings\Local Policies
3. Click on User Rights Assignment
4. Ensure that "Allow log on locally" includes Administrators, Backup
Operators, Domain Users or Users.
I need to know how to do this through the command prompt or create a bootable disk that will do the same since i can't log in to make the changes.