If they are power users, then you can't do much to truly prevent them from installing software, but you can limit it somewhat. Check out the policy at Computer Configuration\Administrative Templates\Windows Components\Windows Installer\Disable Windows Installer-- for Non Managed Apps Only From: gptalk-bounce@xxxxxxxxxxxxx [mailto:gptalk-bounce@xxxxxxxxxxxxx] On Behalf Of DinhDuy Sent: Monday, February 12, 2007 6:51 PM To: GPTalk Subject: [gptalk] Help Me! Prevent Users to install software on their computers. Dear All, I have some problems with group policy. Pls help me to solve my problem! Server: Windows 2003 Users: Power Users - I deploy Power Users rights to all users in my Domain. - After deploying, everyone can setup software on their computer, so I want to prevent this action. How can I do that? Please help me, thanks in advance.