The Limit maximum color depth machine setting should be configured correctly. This policy setting allows you to specify the maximum color resolution (color depth) for Remote Desktop Services connections. You can use this policy setting to set a limit on the color depth of any connection using RDP. Limiting the color depth can improve connection performance, particularly over slow links, and reduce server load. If you enable this policy setting, the color depth that you specify is the maximum color depth allowed for a user's connection over RDP. The actual color depth for the connection is determined by the color support available on the client computer. If you select "Client Compatible," the highest color depth supported by the client will be used. Fix: (1) GPO: Computer Configuration\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Remote Session Environment\Limit maximum color depth (2) KEY: HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services\ColorDepth