Optimize Start Menu Cache Files

Hi,

We have setup a brand new Remote Desktop Services farm with 10 Session Hosts for 200 users.

Now we see the Task 'Optimize Start Menu Cache Files xxx(SID)' for about 200 times on every Session Host server.

These can be deleted but they return whenever a user logs onto a specific Session Host server.

How can this be prevented? 

This has been addressed in another thread (http://answers.microsoft.com/en-us/windows/forum/windows_8-performance/how-do-i-permanently-delete-this-task-scheduler/0fd8f7a0-c182-45c1-ad42-f02d768cb295), but the solution there would be to stop the Tasks individually of stop the Task Scheduler. Both are obviously not what I, or anyone else, want.

Regards,

Sjoerd