Disabling Windows Compatability Telemetry

Hey! Depending on Windows Version including Home or Pro, the name may vary, so get Allow Telemetry and it is your work for stopping the Microsoft Compatibility Telemetry High Disk Usage. 

In some cases, Windows Home version does not have the facility to edit from Group Policy. In this case, you need to work with Registry Editor. How will you do it? 

1. First Open RUN and type regedit and Press Enter.
2. Now go to in this location: HKEY_LOCAL_MACHINE > SOFTWARE > Policies > Microsoft > Windows > DataCollection
3. Right Click on Data Collection and create New - DWORD (32-bit) Value.
4. Then you will get the Allow Telemetry.
5. Double click on it and give the value 0.
6. Restart the PC and you are done.

It will not take anymore high CPU for Telemetry. You can check the full process of doing work with  Registry Editor for stoping Microsoft Compatibility Telemetry High Disk Usage from here (Second Method). You will get the necessary screenshot. Thanks a lot. :)

Hi, I was having the same problem and I just did these steps:

1. Press Windows button
2. Search for Feedback and Diagnostics
3. Put Diagnostic and usage data level to "Basic"

Now the process is not using too much Disk. By the way it was selected the "full" option, and that's why I was having so much Disk Usage.

One way to block this process is to use a tiny utility called "Process Blocker". https://www.processblocker.com. After installation, run it.

Name of application to block:

Compattelrunner.exe

In case it is ever renamed, choose:

"Block other applications with identical CRC"

Now the process is blocked. As a bonus, there is a notification shown every time it tries to run. PWND.

I forgot to mention that after you make a Registry change, you have to reboot.

Does anybody know how to stop the Windows Compatability Telemetry (CompatTelRunner.exe) from starting? It causes extremely high disk usage which results in large performance issues.

best solution:

go to task manager, locate Windows Compatability Telemetry, right click and select open file location. once found (CompatTelRunner.exe), go to properties >> security >> advanced permission settings and click on change owner.

change the owner to your administrator account and click apply.

go back to permissions and click edit permissions. select admin group/user and check full control box and select apply. after, deny all permissions to other user groups (system, trusted installer, all application packages and all restricted applications) and click apply. this will prevent the system files and applications from reading, executing or editing the app. you can also delete it bur this wont stop system repair or update from re-installing it. therefore, keeping it with denied permissions for non admin user & system will prevent system from re-installing it again as this will require your permission.

Alternatively, you can also disable the task in task manager, but this doesn't always work. so doing both will ensure double protection. 

hope this helps