Method 1: Use the command prompt line
1. On the system desktop, press WIN + X to bring up the drop-down menu, as shown in the following figure;
2. Click "command prompt (administrator)" in the pop-up menu, as shown in the following figure;
3. Select "yes" in the pop-up User Account Control window ";
4. Now, enter net user administrator/active: yes in the cmd window. After you press enter, our administrator will be able to use it. Restart your computer and check it out.
If you want to cancel administrator activation, enter net user administrator/active: no and press enter.
Method 2: enable it through computer management
Win + X, click "computer management" in the "computer management" window as shown in the figure, and find "system tools-local users and groups-users ", you will see an Administrator account. As shown in the following figure:
Right-click "Administrator" and choose "properties". Then, deselect "account disabled" to enable the Administrator account.