CompatTelRunner.exe is a Windows system process that is used to update an operating system to the latest version available or also known as the updates for Windows.
3 Ways to Fix CompatTelRunner.exe High CPU and Disk Usage
Method 1: Repair Corrupt System Files
To fix the problem, you can execute the SFC command to scan for corrupted or missing files, and repair or replace them with the correct ones. This method can help you fix the high CPU and Disk Usage issue that was caused by CompatTelRunner.exe. Otherwise, try other methods below.
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Method 2: Take ownership of CompatTellRunner.exe and Delete It Afterward
Removing these files from the system can create some problems on your computer. However, if you still want to delete it, you can take ownership of it and remove it out of your computer to get rid of the high CPU & Disk Usage issue that was created by CompatTelRunner.exe.
Step 1: First, press Windows + R, fill in the following address and then press Enter.
Step 2: Next search for the CompatTelRunner.exe file and then right-click on it to bring up the context menu.
Step 3: Next, select the Properties option and then switch to the Security tab.
Step 4: Look for the “Advanced” button and then click on it to open the Advanced Security Settings window for CompatTelRunner.
Step 5: In the next step, click on the “Change” link to switch the owner from a Trusted installer to something else.
Step 6: Type the username you are using into the box and then click on the “Check Names” button to verify it’s correct. After that, click on the “OK” button.
Step 7: After you switch the ownership of CompatTelRunner.exe, click on “Apply” and then the “OK” button to save changes.
Step 8: The next move is to adjust the permissions of the account you are using. For that you need to right-click on the CompatTelRunner.exe file, select Properties, switch to the Security tab and then click on the advanced button again.
Step 9: In the next step, select the account that you are using from the list and double-click on it.
Step 10: Next, check the Full Control checkbox and click on the “Apply” button.
Method 3: Disable CompatTelTunner.exe from Task Scheduler
Although one of the easiest ways to solve the Telemetry Runner problem is to disable it without deleting it.
Step 1: Launch the Run window by pressing down Windows key and R letter on your keyboard at the same time.
Step 2: Type taskschd.msc and press Enter or OK.
Step 3: Now, expand the folders in the order: Task Scheduler Library → Microsoft → Windows → Application Experience. Look for a task called Microsoft Compatibility Appraiser and then right-click on it. Select Disable.
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Note that ‘CompatTelRunner.exe’ does not harm the computer. Although, sometimes, the CompatTelRunner.exe extension file can start consuming enormous CPU usage and disk space. The user should deal with the rising problem to avoid any damage to the hardware. Hopefully, the above-mentioned solutions have helped rectify the CompatTelRunner.exe high CPU and disk usage error.