Failed to schedule Software Protection service for re-start

I have been running Windows 8 for a while now, upgraded from 7.

I've been seeing the following error in my Event Viewer for a while and decided to look into it:

Failed to schedule Software Protection service for re-start at 2113-02-08T11:19:03Z. Error Code: 0x80070002.

After much searching I found this thread on Technet that covers deleting and reinstalling the offending scheduled task.

http://social.technet.microsoft.com/Forums/en/winservergen/thread/6f986797-0db9-454d-9979-dbc625f09b82

So, with thanks to Yan Li I was able to stop the error occurring, but I did encounter a different error when attempting to import the task from my backup:

(24,9): Priority

The error message isn't very helpful, but comparing the XML with that of SvcRestartTaskLogon, I noticed that the following section in SvcRestartTask

<RestartOnFailure>
      <Priority>3</Priority>
      <Priority>PT1M</Priority>
</RestartOnFailure>

in SvcRestartTaskLogon is

<RestartOnFailure>

      <Interval>PT1M</Interval>

      <Count>3</Count>

</RestartOnFailure>

I changed the offending lines in SvcRestartTask and it now imports correctly.