: Verify that the patch is compatible with Windows Server 2012 R2. Applying a patch meant for a different version of Windows Server could lead to system instability.
net start termservice
While the original 2013-era patch is still available, newer updates for Windows Server 2012 R2 (such as those from November 2021) often break older patches by introducing new versions of termsrv.dll . Recommended Method: RDP Wrapper Library universal termsrvdll patch windows server 2012 r2 best