First, enable Administrator account
Use the "win+x" key combination to open the run, in the Run box, enter: NET user Administrator/active:yes click OK.
Then Alt+f4, select Logout, you can see the Administrator account, click Enter. When you quit, remember that it's best to log off and re-enter your account, and the next restart will automatically enter the administrator account. After you want to use the Administrator account, log off to see.
Second, the Administrator account is disabled
Open the run with the "Win+x" key and enter: NET user Administrator/active:no in the Run box
Log off the system and the administrator account disappears!
Direct access to applications using Administrator accounts (Admin account Metro application activation):
With "Win+r" and then enter: Gpedit.msc---Start Group Policy Editor---Computer Configuration---Windows Settings---security settings---Local Policy---security options, find a policy on the right: " User Account Control: Administrator Approval mode for the built-in Administrator account, double-click Open Change to Enabled, and then quit restarting the computer.