How to fix the RTP CheckDuplicateClientCode Error

This article describes how to fix the RTP.Enterprise.Client.USL.ClientServices.CheckDuplicateClientCode error shown here:

This error is caused by WMI (Windows Management Instrumentation) being corrupted and showing the Win32_Processor as an invalid class.

To check if your WMI is corrupted open wmimgmt.msc and right click on the WMI Control (Local) and click Properties. If it is corrupted it will show Win32_Processor: WMI: Invalid class shown here:
Next open CMD as admin and type "net stop winmgmt" and press enter.
Restart the computer and boot to the Advanced options then select "Command Prompt"
Login with the Administrator account, navigate to "C:\Windows\System32\wbem", and rename the "Repository" folder to something different like "RepositoryOLD"
You can do this by typing "rename Repository RepositoryOLD"
Restart the computer
Once booted login, open CMD, and type "net stop winmgmt" then press enter
Type "winmgmt /resetRepository"
Restart the computer and RTP should no longer have the duplicate client code error.