Using CompatTelRunner.Exe, you can install the newest version of Windows or any other Service Pack Upgrades on your computer. If you’ve signed up for Microsoft’s Customer Experience Improvement Program, the CompatTelRunner.Exe can also diagnose your machine for compatibility issues and collect programme telemetry data.
During the process of updating to the most recent version of Windows, you can use this tool to verify compatibility. A specific Windows Update, KB2977759, is the focus of this procedure. It looks at the Windows 7 RTM compatibility updates (Release to Manufacturer). This update is one of many that serves as a prelude to upgrading to a newer version of the operating system.
Because it causes your PC to run slowly, everyone want to have this process removed. CompatTelRunner.Exe files in the Task Manager drain CPU and Disk Usage, according to several of the customers. If you don’t require it, you can delete it, however running the compatibility checks will help you diagnose the system on your own.
The TrustedInstaller is in control of this file, which is located in the Sytsem32 subdirectory. “Access is denied” will pop up if you try to change this. Simply put, this implies you can’t remove it or change it in any way. Because TrustedInstaller is the process’s owner, it can only perform Read Only permissions on it. As a result, you are able to alter or customise it.
It’s as simple as taking ownership of the process, after which you can either delete it without uninstalling the entire Windows update, or you can simply disable the Scheduled Tasks which execute the application and leave your problem in place.
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Method 1: Solve High CPU and Disk Usage Issues with CompatTelRunner.Exe by Taking Ownership of the Program and Deleting It
Check to see if you’re logged in as an administrator before continuing further.
Step 1: Open the Start menu by pressing Windows or clicking the Windows icon at the end of the taskbar.
Step 2: Search for “CompatTelRunner.Exe” in the search box that appears. Don’t forget to right-click on the file titled compattelrunner instead of opening it.
Step 3: Select Open the Location from the drop-down option. Pressing R while holding down the Windows key will also do the trick. To find CompatTelRunner.Exe, navigate to C:Windows|System32 and use the search function to look for it.
Step 4: Right-click on the CompatTelRunner.Exe file you found once you’ve entered the folder. Select Properties from the drop-down menu.
Step 5; To get to the next step, click on the Advanced icon in the Security tab.
Step 6: Find the Owners tab, and select the option to change the ownership. Select the account you currently have and then click on Apply.
Step 7: Make sure that any prompts warning you to close all Properties windows have been closed. After you’ve changed the owner, the next step is to modify the permissions. In order to do so, right-click and open Properties on the CompatTelRunner.Exe file once more.
Step 8: Once again, go to the Security tab and click on Advanced, and you’re done. When you click Permissions, a drop-down menu will appear from which you can select the account you’re currently in into. Permissions can now be set in a new window that pops up.
Step 9: Under the Allow column, select Full Control and click Apply.
Ownership is transferred from the Trusted Installer to you once all the processes have been completed. In this case, you won’t get the error message “Access is denied”. You have complete control over whether or not to remove it, and it won’t take up much space on your computer.
To remove the complete update, you can try a few different methods. However, do not utilise the KB2977759 because it may cause a mess with the entire Windows Update schedule. Your computer will function more smoothly if you follow the instructions provided for safely deleting the file.
Method 2: Remove CompatTelRunner.Exe from the Task Scheduler
Disable CompatTelRunner.Exe in the Task Manager as a second option. Follow these steps to get started:
Step 1: Hold down the Windows key while pressing R. 2. You can now type taskchd.msc and click OK.
Step 2: Next, click on the Task Scheduler icon. Microsoft can be found at the Library. Afterwards, choose Windows. To begin, go to Windows and click on Application Experience.
Step 3: Finally, right-click on any of the Microsoft Compatibility Appraiser tasks and select Disable from the context menu that appears.
Conclusion
After following the aforementioned procedures, restart your device and see whether the issue persists. We’ve included all the possible fixes for the issue CompatTelRunner.Exe, and we hope they’ll help you. If the problem recurs, start over with the approaches listed above and see if you can discover a solution.
