Group Policy Security Filter and how it works when a single computer is added

What would be the outcome, if I were to add a single computer to security filter without removing Authenticated Users?
All users and computers are in OU "Main-OU"
The GPO is linked to "Main-OU"
Not that the number matters, but 100 Users and 100 Computers
No other filters are applied

In other words:  Any Authenticated User that logs into that single computer will get the policy, but they would not get the policy when they log into any other computers.  Is that correct?
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I think you would find all users still got the policy regardless of computer. Authenticated Users includes every authenticated object to Active Directory, which would include all domain users, groups (defined and part of AD), and computers that have been joined to the domain.

S-1-5-11 Authenticated Users

A group that includes all users and computers with identities that have been authenticated. Authenticated Users does not include Guest even if the Guest account has a password.

Note: This group includes authenticated security principals from any trusted domain, not only the current domain.

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No-ExpertAuthor Commented:
That is true.  

You will have to do the following to stop "Authenticated Users" from getting the GPO:
- Go to the “Delegation” tab and then “Advanced”
- Select the “Authenticated Users” security group
- Scroll down to the “Apply Group Policy” permission and clear the “Allow” security setting.

If you don't want a specific user/computer to get the GPO then you will have to do as above, but change the “Apply Group Policy” permission to "Deny" security setting.
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