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Sophos Anti-Virus for Windows 2000+: error 8007000d: 'The data Is invalid'

Issue
A scheduled scan or other scheduled task fails on one of your computers and the following error message appears:

General page initialization failed.
The specific error is:
0x8007000d: The data is invalid.
An error has occured attempting to retrieve task account information. You may continue editing the task object, but will be unable to change task account information.

Enterprise Console may report that the affected computer differs from policy. Sophos Control Center may report that the affected computer has changed under 'Central Configuration'.

Sophos product and version
Sophos Anti-Virus for Windows 2000+

Operating system
Microsoft Windows 2000

What to do

The Scheduled Tasks cache for the 'System' user is likely corrupted. The following steps describe how to back up the scheduled tasks, delete the corrupt cache data and recreate the scheduled tasks.

  1. Open the Windows Control Panel and double-click 'Scheduled Tasks'.
  2. Change to 'Details' view (from the 'View' menu, select 'Details').
  3. If the 'Creator' column is not displayed, right-click on 'Name' and select 'Creator'.
  4. Copy all of the tasks created by 'System' to a backup location.
  5. In the Scheduled Tasks window, delete all the tasks that were created by 'System'.
  6. In Windows Services, stop the 'Task Scheduler' service. Keep the Services window open.
  7. Navigate to C:\Documents and Settings\All Users\Application Data\Microsoft\Crypto\RSA\S-1-5-18.
  8. Delete all the files in the folder.
  9. In Windows Services, restart the 'Task Scheduler' service.
  10. Restart the computer.
  11. In Enterprise Console or Sophos Control Center, reapply the Anti-Virus policy to the computer.
  12. When the affected computer is listed as compliant, go back to it and open the folder where you put the backup files in step 4.
  13. Delete any Sophos scheduled scans in this folder. These scans were re-applied in step 11, so you don't want to keep them.
  14. Copy the remaining backup copies of the scheduled tasks back into the Scheduled Tasks window.
  15. Right-click the task that failed, and select Run.

If you need more information or guidance, then please contact technical support.