Windows 10 RDP Issue: Unable to connect using RDP Protocol to access Windows 10 and Windows 8.1

Windows 10 RDP Issue: Unable to connect using RDP Protocol to access Windows 10 and Windows 8.1


Product Line:  VERDE


Alert
Important Note: VERDE VDI version 8.3 or newer no longer supports Microsoft Windows 7 and Windows 8.1 as guest desktop operating systems.
Current and supported VERDE releases are designed and validated exclusively for modern, Microsoft-supported operating systems, specifically Windows 10 and Windows 11.
For more information, refer to this article: đź“— Windows 7 and Windows 8.1 Guest OS Support Status in VERDE VDI


In Windows 10 and 8.1 Microsoft changed RDP’s defaults. They modified the default for “SecurityLayer” from 0 to 2. Even if you go into the user interface and disable: “Allow connections only from computers running Remote Desktop with Network Level Authentication (recommended)” Still doesn’t change that value to a 0.

Simple fix:

Open RegEdit
Navigate to this Key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp
Change “SecurityLayer” to a zero
Reboot


You'll probably still need to access the Control Panel/Remote/Allow remote access to your computer and set check boxes similar to the following:





Article #KB386

Last Edited: 01/28/2026