Thanks for the heads up as I didn't know I had to do this but it still isn't doing anything at first I made the test group policy just to change homepage to google then as it wasn't working i tryed changing it to bing but now the computer has a google homepage :S!!!
Hi Steve thats what I did opened cmd as admin and did the gpupdate /force and it said it was updated sucessfully (Computer and User) then I restarted the machine. But no still the same!
In group policy manager you need to link the new policy to the ou that the computer is in.
In AD, move teh test pc to the new test OU.
In GPMC right click the Test OU and link existing policy.
Choose the test policy.
Gpupdate /force on the server and the client.
Another good command on the client is
Gpresult /R /scope computer
From an admin command prompt this will tell you what gpos are applied
Im still pretty new to group policy but the management tool has some good explainations for what the settings do. Like everyone said apply to dummy user, computer or group.
Another thing I found is if you have a computer rule it doesnt get applied if you assign it to a user.
Here is a really good website I use to create my Group Policy and new GPO.
To lock the student down you need to create a simple GPO for your domain as default.
After you can add some more GPO.
I tend to separate most of my GPO and give them a good name to always remember what they do.
It takes time to create a proper GPO that suits your needs.
To test the policy I use one VM (with a snapshot of the clean windows) and 2 tests users (staff and student).
After that just apply the GPO on the computer, log on and see if it works.
gpupdate /force will refresh the group policy on the computer.
Keep in mind that GPO can be apply on the computer or the user.