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How to install updates using the Windows Update tool from PC Settings in Windows 8.1. How to view optional updates and how to configure this tool.

Windows 8.1 Update is a cumulative set of security updates, critical updates and updates. You must install Windows 8.1 Update to ensure that your computer can continue to receive future Windows Updates, including security updates.

Windows 8.1 更新是一組積存安全性更新、重要更新和其他更新內容。 下載附加元件、延伸模組、Service Pack 和其他工具以搭配您的 Windows 軟體使用。

You must install Windows 8.1 Update to ensure that your computer can continue to receive future Windows Updates, including security updates. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base

By default, Windows 8.1 installs updates automatically; however, if you’ve disabled the automatic updates feature, you can update Windows 8.1 manually at any time through the Settings menu.