Window Task Scheduler Error when trying to test a new program

Hi experts,
I want to test a new program on my windows 7 Operating System but the task scheduler is showing the following error message on the set up:
Task XXX; The task image is corrupt or has been tampered with.
I did not notice any Task Scheduler related problems before
I need a solution. Please help.
Thanks
Error:
Task Scheduler
Task
User_Feed_Synchronization-{1A0FF850-02CB-4088-9D3F-2BC617AC6864}:
The task image is corrupt or has been tampered with.
