Geek's Advice

Method 1. Disable Windows Personal Data Sharing

The easiest way to disable Microsoft Compatibility Telemetry and other data sharing services that transmit information from your device to Microsoft is to use a good security software. With only a few clicks, you’ll protect your privacy and boost your PC speed instantly. Our recommended software has 7 core components ensuring privacy, security and computer’s peak performance. Here’s how to use System Mechanic^®
Ultimate Defense^™ to disable compatelrunner.exe on Windows.

1. Open System Mechanic Ultimate Defense and go to System Mechanic tab. Run a quick scan (or deep scan) and then check your recommendations.
2. Under Recommendations, you should see a line stating that Windows 10 personal data sharing services are currently enabled. Click Review.
3. Here, you will see a list of privacy-concerning services. In Status section, switch the selections to Disabled or Block.
   
4. You’re secured! Do not forget to check other security and privacy recommendations suggested by the software.

Method 2. Disable CompatTelRunner.exe via Task Scheduler

One of the easiest ways to solve Telemetry Runner problem is to disable it without deleting it. Follow the given steps to stop CompatTelRunner.exe in Windows 7, 8 or 10.

1. Launch Run window by pressing down Windows key and R letter on your keyboard at the same time.
2. Type taskschd.msc and press Enter or OK.
3. Now, expand the folders in the given order – Task Scheduler Library > Microsoft > Windows > Application Experience. Find a task called Microsoft Compatibility Appraiser and right-click on it. Select Disable.

Method 3. Delete CompatTelRunner.exe after taking ownership of it

The following method requires having the Administrator privileges on the computer. So before you begin, log into your computer using Administrator’s account (whichever account has admin’s rights).

The given method describes how to delete only the Compatibility Telemetry Runner file, not the entire KB2977759 update. Removing the whole update can mess up the schedule of Windows updates, so we do not recommend doing so.

1. Open Windows search and type CompatTelRunner. Right-click on the matching result to see options and select Open File Location. Or you can just go to C disk, then to Windows folder, and then to System32 folder. An even easier method is to open Run (Windows key + R), type C:\Windows\System32 and press Enter. In the System32 folder, find the file called CompatTelRunner.exe.
2. Right-click the file and choose Properties. Now, go to the Security tab and click Advanced button here.
3. Next, open Owner tab and click Change option. Then choose Advanced. Then click Find Now.
4. This displays a list of owners, so select the account you are using right now and click OK. Then close tables by clicking OK.  In Advanced Security Settings table, click Apply and OK. You might be asked to close all Properties windows, so do so.
5. After changing the file owner, you have to change the permissions for the file. Right-click CompatTelRunner.exe file and open Properties once again. Navigate to Security tab > Advanced > Select User from a list > Edit.
6. A new window then opens, offering permission suggestions. Look at Allow column and select Full Control. Click OK. Then Apply and OK. Click Yes to confirm your choice.
7. Now that you have full control of the file right-click the file and Delete it.

Method 4. Disable Microsoft Compatibility Telemetry via Group Policy Editor

1. Press Windows key + R to launch Run prompt and type gpedit.msc, then press OK.
2. Now, expand the folders in the given order – Computer Configuration > Administrative Templates > Windows Components > Data Collection and Preview Builds.
3. Double-click Allow Telemetry and select Disabled option in a new window that appears. Click Apply and OK.
   

Method 5. Disable Telemetry via Registry Editor

1. Press Windows key + R at the same time and type in the Run prompt: regedit. Press OK. User Account Control window then appears, click Yes.
2. Now, go to HKEY_LOCAL_MACHINE > SOFTWARE > Policies > Microsoft > Windows > DataCollection. Here, right-click on DataCollection and select New > DWORD (32-bit value). Give this new value name Allow Telemetry and then double-click it. Change Value data to 0 (zero) and click OK.

Method 6. Look for other issues causing slow Windows performance

One of the provided methods should have helped in fixing Microsoft Compatibility Telemetry High CPU issue. However, if you still experience system slowdowns and want to take extra step towards peak computer’s performance, consider reading these steps on how to speed up Windows 10.