I have 2 DCs Windows 2003 server. On DC2, It also has Files and Print Roles. All users are connect to this server for File and Print. however, this server has Replication problem. If I demote this DC2, Will it still retain all the
user permissions on the Share drive?
Yes - Make sure to not click the checkbox "This is the last domain controller in the domain" during the demote and it will act as a member server and permissons will not be lost. But if it has replication issues you might will face issues demoting the
DC sucessfully so I would solve those issues first.