How to rename the built-in Administrators group in Active Directory?

Solution 1:

The following steps worked for me.

1. Launch LDP.exe and bind to the DS server you want to modify. Make sure you are schema admin, and admin over the partition you are modifying
2. After connecting and binding, navigate to the browse menu and select the "Modify" option.
3. Leave the DN blank, type schemaUpgradeInProgress into the Attribute field and in the values field type 1.
4. Click the Add operation and then click the Enter button. This will add this command to the entry list.
5. Click the Run button. If you are successful you should see a successful modify message.
6. Go to View -> Tree. Connect to the appropriate base DN.
7. Find the object, right click and select Modify.
8. In the Attribute field, type "systemflags"; in the Values field, leave it blank; in the operation radio options, select Delete.
9. Then click Enter, then click Run to remove the system flags values.
10. Perform the modification of the object.
11. Set the systemflags value back to the original value, to make it owned by the system again
12. Once finished, run LDP again with the above steps, changing the schemaUpgradeInProgress value to 0 (to prevent unwanted schema/system changes).

https://docs.microsoft.com/en-us/archive/blogs/janelewis/how-to-modify-a-system-owned-object