I'm building a new AD Domain. I've set up the Domain controller, and a second server that acts as a "back up" Domain controller while serving as an ePO and CounterSpy server. So far, so good. Then I added a couple of workstations into the Domain to test, before dumping all of the workstations in. Now, I can log into the workstations and do EVERYTHING administrative except install programs and printers. It doesn't matter if I log in as a Domain administrator or as a local Administrator, when I attempt to install I get the error message "You must be logged in as an Administrator..." every time, even Microsoft Update gives that error. Anyone have any Ideas?? I've been using Windows Server since NT 3.5 and have never seen this issue, it's got me stumped, especially since I can install on the servers, it's just the workstations where I run into this.

I would start by disabling user/computer group policy on one of the workstations to see if the problem goes away... If you are able to perfrom add/remove of software while policy is disabled on the client you may want to look deeper into your group policy settings.

What build of Windows Server 2008 are you using?

AJ Lambert wrote: What build of Windows Server 2008 are you using? 2003 R2 64 bit, I posted here because I couldn't find a 2003 forum, and saw other 2003 posts.