The subject problem, assuming you have administrative privleges, is that you do NOT have Full Control permissions on the following registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update.

To fix this problem:

1. Use Regedit.exe to navigate to:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update.

2. Right-click the Auto Update sub-key and press Permissions.

3. Grant the Administrators group Full Control.