Disable: 'Do not allow local administrators to customize permissions' for fWritableTSCCPermTab Specifies whether to disable the administrator rights to customize security permissions in the Remote Desktop Session Host Configuration tool. You can use this setting to prevent administrators from making changes to the user groups on the Permissions tab in the Remote Desktop Session Host Configuration tool. By default, administrators are able to make such changes. If the status is set to Enabled, the Permissions tab in the Remote Desktop Session Host Configuration tool cannot be used to customize per-connection security descriptors or to change the default security descriptors for an existing group. All of the security descriptors are Read Only. If the status is set to Disabled or Not Configured, server administrators have full Read/Write privileges to the user security descriptors on the Permissions tab in the Remote Desktop Session Host Configuration tool. Note: The preferred method of managing user access is by adding a user to the Remote Desktop Users group. Counter Measure: Configure this setting depending on your organization's requirements. Potential Impact: The Permissions tab in the Remote Desktop Session Host Configuration tool cannot be used to customize per-connection security descriptors or to change the default security descriptors for an existing group by local server administrators.

[enable/disable]

(1) GPO: Computer ConfigurationAdministrative TemplatesWindows ComponentsRemote Desktop ServicesRemote Desktop Session HostSecurityDo not allow local administrators to customize permissions (2) REG: HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindows NTTerminal ServicesfWritableTSCCPermTab