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on Windows Server 2016 is the ability to bypass the default limit on simultaneous Remote Desktop (RDP) sessions By modifying this specific system library, users can enable Multiple Concurrent RDP Sessions

Computer Configuration > Administrative Templates > Windows Components > Remote Desktop Services > Remote Desktop Session Host > Connections officially configure session limits using Group Policy instead?

Stop the Remote Desktop Services ( TermService ) service.

Rename the current file to create a backup. powershell ren %SystemRoot%\System32\termsrv.dll termsrv.dll.bak Use code with caution.

For standard retail/KMS builds of Windows Server 2016, look for this string: 39 81 3C 06 00 00 0F 84 B1 7D 02 00 Use code with caution. Replace that exact string with: B8 00 01 00 00 90 89 81 3C 06 00 00 Use code with caution.