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Prevent CompatTelTunner.exe From Running In Windows

   Press the Windows key and then search for Task Scheduler.
   Open Task Scheduler.
   Navigate to the following address below:
   Task Scheduler Library > Microsoft > Windows > Application Experience
   There would be three tasks on the list. You need to choose “Microsoft Compatibility Appraiser”, right-click on it and select the “Disable” option.
   Reboot your Windows computer and see if you are having High CPU issue or not.

I hope this solves your issue. You can read more about other methods if this one doesn't work for you. This answer from Microsoft might be handy as well.
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