Create user for Active Directory

New-ADUser -name user1 -GivenName user1 -SamAccountName user1 -UserPrincipalName user1@jimmylab.com

Check user if it is created?

Get-ADUser user1

Change password for AD user

net user user1 Passw0rd! /domain

when create user, the user is not enabled. Enable user

Enable-ADAccount -Identify user1

Add user to Domain Admin group

Add-ADGroupMember 'Domain Admins' user1