Dave-H, I know this is an old topic, but do these problems and solutions really ever become obsolete? I was having this same error: Failed to schedule Software Protection service for re-start at 2015-09-26T17:48:09Z. Error Code: 0x80070002Thanks to your post here, and another on MSMVPs, I followed your exact instructions, identified three tasks that had become corrupt, deleted them, restored them. One of them was problematic because the original task had bad lines in the XML: <RestartOnFailure> <Priority>3</Priority> <Priority>PT1M</Priority> </RestartOnFailure>I replaced those with the proper values given to me fro the MSMVP forum and rebooted, no more errors every 30 seconds and no more corrupt entried in TAsk Scheduler. I tried to post the proper key values for the XML file, but it would not let me. But the values as they stand confuse the system. They are supposed to be: <Priority>7</Priority> <RestartOnFailure> <Interval>PT1M</Interval> <Count>3</Count> </RestartOnFailure> and once I entered those and re-imported the file, the errors stopped. It was impacting my system severely. Thanks a lot.