How can I detect if Windows Update is installed on a machine?

A. Windows 2000 includes the Windows Update as a core component but it was also supplied with Internet Explorer 4.0 for NT 4.0 as an option. To check if its installed there are a number of methods:

  1. Right click on the taskbar and if a Toolbar option is present then the Windows Update is installed
  2. Right click an item in the Start menus Programs area and if a menu is shown then Windows Update is installed

To tell from a script check for the following key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\\{89820200-ECBD-11cf-8B85-00AA005B4340\}and if its IsInstalled value is 1 then the windows update is installed.

You could use the resource kit REG.EXE utility with the /query switch to perform this check.

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