Hi,
When you have a computer joined to an Active Directory domain, and that you decide to leave the domain to work-group, you are “surprisingly” asked to enter credentials for an account with permissions to remove this computer from the domain. I know this is not always a bug, but in all my cases, i was just wanting the leave the domain.
So what credentials do you need to provide : anything will work, just type something and click OK.
Nice Saturday!