Problem:
If you have a need to disable certain built-in Windows scheduled tasks you may notice that since a recent update you get an error stating ‘The user account you are operating under does not have permission to disable this task’.
Solution:
To solve the error you first need to download pstools. Then run the below command from the directory you extracted pstools to.
C:\System\PSTools\PsExec -i -s c:\windows\system32\mmc.exe /s taskschd.msc
You can then disable the task.