Hello, is Domain Users ever required to be in the local "Users" GROUP on a 2008 R2 file server? (to access files on it via a mapped drive) My assumption is not. A consultant not knowledgable with Windows server had set this up.
I believe the server just needs to be joined to the domain, and as long as any Shares on it have their Share permissions and NTFS perms setup right, that's all users should need to map a drive to it and get access to files on it. Please confirm.