After renaming a domain from .com to .local I've noticed that none of my credentials work when I try to make any changes using my domain Administrator account.
When I try to install software that requires admin privileges my domain admin account doesn't work for it, nor do any domain accounts that are part of the domain administrators group.
I get errors like:
"The requested operation requires elevation."
"Access is denied."
These all happen when I try to do an operation which requires privilege escalation like un-joining the pc from the domain, or enabling the local admin account.
For the domain rename I used this http://mizitechinfo.wordpress.com/2013/06/10/simple-guide-how-to-rename-domain-name-in-windows-server-2012/ tutorial and it worked fine up until this point where I'm getting all kinds of privilege errors.