I just migrated to a Windows Server 2008 R2 File Server using the File Server Migration Toolkit. For some reason, when I want to add NTFS permissions on a folder for a user/group, there is no "Add" button on the Properties -> Security tab. The local admins group is the owner on every folders, with the Domain Admins group being part of that group. How do I get the button to come back?
Not sure if it matters but I changed the server name after the data was migrated.