I have the following Active Directory:
My Domain
--- Computers
------ Servers
------ Workstations
--------- My Workstation
--- Security Groups
------ MySecurityGroup (Members: MyUser, ...)
--- Users
------ Standard
--------- MyUser
------ Administrator
I created a GPO and linked it to the Users OU. The GPO only contains user settings.
I then removed Authenticated Users from the GPO Security Filter and added MySecurityGroup.
Unfortunately, Windows 7 Pro does not apply the group policy when MyUser logs into MyWorkstation.
If I add MyWorkstation to the GPO Security Filter, Windows 7 does apply the group policy.
Why do I need to add MyWorkstation to the security filter? The group policy is not linked to an OU that contains MyWorkstation so filtering by MyWorkstation should be meaningless.