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Remove Local Admin Rights from all computers in a specific OU

Posted on 2009-04-14
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When our computers were configured, users were added locally to the administrators group.  I would like to remove all users from the administrator group & put them in the Power Users group instead.  That said, we have over 250 computers with this set up, so I am looking for a way to do a GPO per OU that can do this.  I found an article online, but it looks to only pertain to Server 2008 & Vista.  All of our clients are XP Pro SP2 or SP3 & our domain is Server 2003.

Please let me know what can be done to accomplish this.

Thanks!
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Question by:rustyrpage
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by:Darylx
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Configure a GPO on the OU and configure the "Restricted Groups" setting so that the local Administrators group contains only the Domain Admins group.
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by:rustyrpage
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So help me out with this one - I will create a new restricted group with my domain admins group only....how will I actually remove the local users from the administrator group (as they are manually there already)....how will I add the current users to the Power Users group?
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Darylx earned 500 total points
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"Add" a group named Administrators.  In the members section, enter "yourdomain\domain admins".  Every time the GPO refreshes, everyone except domain administrators will be removed from the administrators group.

Adding the users to the Power Users group will be more difficult if you only want the 'user' of a particular PC to be in the power users group.  If you don't mind all users being in the power users group on all PCs, you could add the domain users group to the Power Users group.

Add another group named "Power Users".  Add "yourdomain\domain users" to the power users group.
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by:rustyrpage
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So the name of the Security Group is the local group.

Are there downsides to adding everyone to Power Users?
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by:rustyrpage
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Okay - I did it as a test to a subset of computers, I'll let you know.
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What about system & the other local login accounts?  Will they be removed?
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by:Darylx
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It won't affect the System account - the system account isn't listed in the Administrators group.  Other local accounts will be removed.  I forgot to mention above... you should list "Administrator" in the membership of the Adminstrators group as well as domain admins.

The obvious downside to have everyone in the Power Users group is that everyone will get power user rights on the computers.  Power Users can do most things on a PC.  This is still more secure than having everyone in the administrators group though.
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by:rustyrpage
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Can a Power User install an application though?  That is the key we're trying to stop...however, we do have several on-line websites (Salesforce.com etc) that use ActiveX controls & that has been our major issue all along.

We have local administrator disabled at every computer, so that shouldn't be an issue =)
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One other thing - can Power User see/modify/delete other user profile's data?  In other words, if someone is the primary user, can a secondary user come, log in & see the primary user's information (My documents etc)
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by:Darylx
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A Power User will be able to install some but not all applications.  They won't be able to see into another user's profile folders.
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If you don't want users installing software, I would just leave them in the default Users group.  If they need some Active X controls for your corporate websites, you could look at using Group Policy to install the required Active X controls.
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The issue with the active-X is that we don't know when it comes out etc & to have to create a GPO every time wouldn't be efficient.  That said, I may limit power users just to certain groups.

Thanks for the feedback!
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Why is it that all of the users that were removed from the administrators group were dumped into the debugging users group?
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