Windows 10 and Windows 11 are primarily designed for single-user scenarios, and the ability to allow multiple concurrent remote desktop sessions, as you might find in a Windows Server environment, is not natively supported. The Remote Desktop feature in Windows 10/11 Professional edition is intended for individual use and supports only one active user session at a time.

However, if you want to simulate a multi-user environment on a Windows 10/11 machine, there are third-party tools and modifications available. Please note that using third-party tools or modifying system settings may violate licensing agreements and terms of service. Always ensure that you are in compliance with Microsoft’s licensing agreements when making such modifications.

One popular third-party tool that allows multiple concurrent Remote Desktop sessions on Windows 10/11 is “RDP Wrapper.” This tool essentially patches the termsrv.dll file to enable concurrent Remote Desktop sessions.

Here are the general steps to use RDP Wrapper:

1. Download the RDP Wrapper Library from its GitHub repository: RDP Wrapper GitHub.
2. Extract the downloaded archive to a folder.
3. Run install.bat as an administrator.
4. Once the installation is complete, run RDPConfig.exe as an administrator.
5. Check the boxes for the options you want, such as “Limit number of connections,” “Use advanced settings,” etc.
6. Click the “Save” button.
7. Restart your computer.

Latest and updated fork of the RDP Wrapper is also available on GitHub.

Please keep in mind that using third-party tools to modify system behavior can introduce security risks and may lead to system instability. Additionally, these tools might not work with all Windows 10/11 updates, and compatibility may vary.

Always check the licensing terms and agreements with Microsoft to ensure compliance with their policies. Also, be aware that using such tools may not be supported by Microsoft, and it could lead to unexpected issues or conflicts with system updates.