How do I – Add a User Account to the Local Administrators security group of a Domain Controller

Written by Cornelius J. van Dyk on . Posted in How Do I...

Once you have done a DCPROMO (promoting your server to a domain controller) on your server, Windows removes the ability to manage local administrators from the server, at least via the GUI interface.  As you can see here in the following two screen shots, the “Local Users and Groups” GUI option which is normally available on a non domain controller server thus:


Is removed once the server is promoted to a domain controller thus:


How do we work around this issue then?

Bring out the good old administrative command line…

  1. Click through your Start menu and navigate to locate the “Command Prompt”.
  2. Right click the “Command Prompt” icon.
  3. On the popup menu, click “Run as administrator”.
  4. image
  5. In the admin window that opens, use the following syntax to add the target account to the local administrators group of the server:
  6. net localgroup administrators /add <domain>\<user>
  7. Where the <domain> value is the target domain and the <user> value is the target user e.g.
  8. image
  9. In the example above we added the DEV\SPADM account to the server’s local administrators group.



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Cornelius J. van Dyk

Born and raised in South Africa during the 70's I got my start in computers when a game on my Sinclair ZX Spectrum crashed, revealing it's BASIC source code. The ZX had a whopping 48K of memory which was considered to be a lot in the Commodore Vic20 era, but more importantly, it had BASIC built into the soft touch keyboard. Teaching myself to program, I coded my first commercial program at age 15.

After graduating high school at 17, I joined the South African Air Force, graduating the Academy and becoming a Pilot with the rank of First Lieutenant by age 20. After serving my country for six years, I made my way back into computer software.

Continuing my education, I graduated Suma Cum Laude from the Computer Training Institute before joining First National Bank where my work won the Smithsonian Award for Technological Innovation in the field of Banking and Insurance. Soon I met Will Coleman from Amdahl SA, who introduced me to a little known programming language named Huron/ObjectStar. As fate would have it, this unknown language and Y2K brought me to the USA in 1998.

I got involved with SharePoint after playing around with the Beta for SharePoint Portal Server 2003. Leaving my career at Rexnord to become a consultant in 2004, I was first awarded the Microsoft Most Valuable Professional Award for SharePoint in 2005, becoming only the 9th MVP for WSS at the time. I fulfilled a life long dream by pledging allegiance to the Flag as a US citizen in 2006. I met the love of my life and became a private consultant in 2008. I was honored to receive my ninth MVP award for SharePoint Server in 2013.

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