Nathan；

遠端控制相關設定
https://technet.microsoft.com/en-us/library/cc771538.aspx

1. 要用遠端桌面登入 (不能於本機登入，遠端控制的選項會反灰)。
2. 使用者權限要在Administrators的群組下。
3. 遠端控制功能需啟動 (可參考網址文章)。

第三點的部分也可以透過GPO來控管。
You can also configure remote control settings by applying the Set rules for remote control of Remote Desktop Session Host server user sessions Group Policy setting. This Group Policy setting is located in the following locations:
• Computer Configuration\Policies\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Connections

• User Configuration\Policies\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Connectio