Some machines I can't seem to access using the UNC path \\someworkstation\c$ I get a rejected message when trying the domain admin account. If I try to PSEXEC to these machines I get access denied and if I try to remote desktop as the domain administrator I get the connection was denied because the user account is not authorized for remote login. I can log into them locally though. All this seems to stem from removing local admin rights. I noticed an account that said domain admins in the local administrator group which I have no idea why
Do NOT enable the built-in Administrator's account (no need and not good practice), and the user does not need to be Administrator. Just set up an account with a password that has admin rights.
Go to Network and Sharing Center on the problem machine and make sure it is not in Homegroup and is set to use user names AND passwords. Make sure Network Discovery and File and Print sharing are on .
For reference, look at my article on Folder sharing.