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WUA Update Installation

Applies To: Windows Server 2008

Windows Update Agent installs updates from Windows Update, Microsoft Update, or Windows Server Update Services.

Windows Update Agent detects updates every day at the user configured time or by default at 3:00 A.M. If the computer is configured for Automatic Updates to take place, the downloading and installation of updates also take place at this time.

Events

Event ID Source Message

19

Microsoft-Windows-WindowsUpdateClient

Installation successful: Windows successfully installed the following update: %1

20

Microsoft-Windows-WindowsUpdateClient

Installation failure: Windows failed to install the following update with error %1: %2.

21

Microsoft-Windows-WindowsUpdateClient

Reboot required: To complete the installation of the following updates, the computer must be restarted. Until this computer has been restarted, Windows cannot search for or download new updates: %1

22

Microsoft-Windows-WindowsUpdateClient

Restart required: To complete the installation of the following updates, the computer will be restarted within %1 minutes: %2

23

Microsoft-Windows-WindowsUpdateClient

Uninstallation successful: Windows successfully uninstalled the following update: %1

24

Microsoft-Windows-WindowsUpdateClient

Uninstallation failure: Windows failed to uninstall the following update with error %1: %2

Windows Update Agent

Windows Update