Find Computers Based on General Group Membership

To find computers based on the number of groups to which they belong

Right-click All Computers.
Select Find Computers > Find Computers. The Find Computers: General Group Membership dialog box appears.

Select a search option.
No groups searches for computers that do not belong to any computer groups.
At least lets you specify a number to search for computers that belong to at least that number of groups.
Click OK. A new windows appears with the search results in a temporary group. You can create a permanent computer group from the search results.