This happened to about 40 tasks when I applied SP! to Server 2008 R2 "the task image is corrupt or has been tampered" So I restored the entire system from backup. I have now exported all of the tasks from the registry to a .reg file. If the same problem happens when I try SP1 again, will importing the saved .reg file be valid, or will there be something else that prevents the saved tasks from working ??

Please follow the steps in the known issues section: 2305420 MS10-092: Vulnerability in Task Scheduler could allow for elevation of privilegeSumesh P - Microsoft Online Community Support