Because the machine has a problem, I added an administrator privilege for the system user: Afeng.
But after I restart the machine, I found that the ADMINISTrator built into the machine system was gone in the landing interface, and I couldn't find the Administrator user in the user account of the landing interface. And I have been using the administrator account, there are a lot of things in it, how do you go in? After a look, it will finally get it.
The specific method is to enter the Control Panel -> Administrative Tools -> Computer Management in your computer administrator account AFENG. There is a "local user and group", where the Administrator account is there, and the account of the administrator privilege is deactivated (or deleted), and the Afeng account has a red fork before deactivation. Restart or log out of the machine, you can log in with administrator.