It took one day to add a user to Windows 10 from the command line, because nothing happened when the add button was pressed from the control panel.
The first step is to start the command prompt as administrator, for this, in the start menu, type “cmd” or simply find the shortcut “Command line” and click on it with the right mouse button select “Run as administrator “.
At the command prompt, execute the add user command (where NAME is the user name):
net user NAME /add
Finish, the new user can already be seen in the “Control Panel\User Accounts\User Accounts\Account Management“