Learn how to access Windows device security settings in Windows Security to help protect your device from malicious software.

To change appearance, select Appearance and make the changes you want to your default theme, zoom, toolbar, and fonts.

Copilot is available in the Home tab of Word, Excel (Preview), PowerPoint, and Outlook if you are a Copilot subscriber. If you also have a Microsoft 365 subscription that includes the Microsoft 365 desktop apps then you should find Copilot available in those apps as well.

Windows 7、Windows 8.1、Windows 10 のインストールや再インストールで必要となるインストール メディアの作成方法について説明します。

Contact groups, or distribution lists, are a fast way to send a message to multiple email recipients, especially groups you repeatedly contact.

了解如何使用设备管理器更新Windows中的驱动程序或重新安装驱动程序。

Learn what PivotTable and PivotCharts are, how you can use them to summarize and analyze your data in Excel, and become familiar with the PivotTable- and PivotChart-specific elements and terms.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

Learn how to properly shut down your PC with step-by-step instructions from Microsoft Support.

How to freeze panes in Excel to keep rows or columns in your worksheet visible while you scroll, or lock them in place to create multiple worksheet areas.