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This article describes how to obtain updates for guest Microsoft Windows operating systems.
Microsoft maintains the Windows Update Web site for various updates and patches. These updates are available for download and installation at no charge.
Updates are available for the various versions of Windows. The update process is based on the operating system that you use to connect to the update site. For example, if you visit the site while you are using Microsoft Windows Millennium Edition, you will be shown a list of updates for Windows Millennium Edition only.