Microsoft Windows Update is a free security tool for clients that once activated, automatically searches for and installs updates.
Microsoft recommends using the automatic updating feature in Windows Update. If this is not possible, end users are encouraged to check for new updates once per week. Most updates can be automatically installed without any intervention from end users, but Microsoft says Windows Update occasionally needs input. If this happens, end users will see a notification icon on the right side of the taskbar.
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End users can check on a machine's Windows Update setting in the Control Panel to determine if they have automatic updates set up. End users can click on the Start button, click on All Programs and click on Windows Updates. For Windows 8 or Windows 8.1 end users, Microsoft says to swipe in from the right edge of the screen and tap on Settings, Change PC Settings and Update and recovery.