Could not copy mstsc.* files in \..\system32\ directory in WINdows 7 system.

RDP session will be disconnected. please try connecting to remote computer again .   When I copy mstsc.dll , mstsc.exe in \..\system32\ and same files with .MUI extns in \..\system32\en-us\  into the Windows 7 system, even in safe mode using "Administrator" ID, I get the error: "Permission denied" and some time, "The user did not get permission from the windows Installer".   This above task, I am trying for the below problem, Kindly suggest how to get permission in WINdows 7 system, I could not give FULL permission for my local Admin.   The nature of the problem: When I connect to WIN 7 System through remote Desktop, within 20 minutes it get disconnected with the error on the screen:   " Your Remote Desktop Session has ended. your network Admin might have ended the connection. Try connecting again, or contact technical support for assistance". The Windows Security event err ID: 5152 at that time is pasted below:    The Windows Filtering Platform has blocked a packet.  
 
--------- Please suggest solution for the task that I try to solve the RDP disconnection problem.

Yes, I know this is an old post, I’m trying to clean up older posts that are unanswered.
Did you ever figure this out?