After you upgrade from Windows 2000 to Windows XP Professional, a pop-up message prompts you to turn on the Automatic Updates feature so your computer can be kept up to date. When you use Control Panel to open the Security Center applet and turn on the Automatic Updates feature, you receive an error similar to:
We are sorry the Security Center could not change the Automatic Updates settings.
When you try to turn on the Automatic Updates feature from the Automatic Updates tab in the System Properties dialog, you find that the Automatic Updates feature is not available.
To resolve this issue:
1. Open a CMD.EXE Window.
2. Type the following commands, pressing Enter after each line:
REG ADD HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /V NoAutoUpdate /T REG_DWORD /F /D 0
REG ADD HKLM\System\CurrentControlSet\Services\BITS /V Start /T REG_DWORD /F /D 2
REG ADD HKLM\System\CurrentControlSet\Services\wuauserv /V Start /T REG_DWORD /F /D 2
3. Shutdown and restart Windows XP.
NOTE: See tip 0324 » Registry entries for services.