Log in to the desired server as an administrator.
To open the Windows settings, press the key combination Windows key + i. As an alternative: Click Start > Settings.
Click Accounts.
Windows Server 2016: Click Other People.
Windows Server 2019: Click Other Users.
Windows Server 2016: Click Add someone else to this PC.
Windows Server 2019: Click Add another person to this PC.
In the navigation bar on the right, click Users.
In the menu bar, click Action > New User.
In the User name field, enter the desired user name.
Optional: In the Full name field, type the name of the administrator.
Optional: Enter a description in the Description field.
Enter the desired password and repeat it.