The Allow or Disallow use of the Offline Files feature machine setting should be configured correctly. Determines whether the Offline Files feature is enabled. This setting also disables the "Enable Offline Files" option on the Offline Files tab. This prevents users from trying to change the option while a setting controls it. Offline Files saves a copy of network files on the user's computer for use when the computer is not connected to the network. If you enable this setting, Offline Files is enabled and users cannot disable it. If you disable this setting, Offline Files is disabled and users cannot enable it. Fix: (1) GPO: Computer Configuration\Administrative Templates\Network\Offline Files\Allow or Disallow use of the Offline Files feature (2) KEY: HKLM\Software\Policies\Microsoft\Windows\NetCache\Enabled