How to Add a Computer Account to a Restricted Group in Group Policy
There may be a time where you need to add a computer account to a number of local groups using Group Policy restricted groups. Computer accounts however do not appear in the list of Object Types within Group Policy.
It is however possible, simply add the computer account without clicking Browse in this format:
As long as you add the dollar sign $ at the end of the computer account name, group policy will process it.