To configure automatic updates on windows 2008 server

1. To enable automatic updates, type:

cscript C:\Windows\System32\Scregedit.wsf /au 4

2. To disable automatic updates, type:

cscript C:\Windows\System32\Scregedit.wsf /au 1

3. BTW, in order to view your current settings you can type:

cscript C:\Windows\System32\Scregedit.wsf /au /v