Protect your Android, iPhone, Mac, and Windows devices from threats by installing Microsoft Defender. Download Microsoft Defender on your devices either by:

Discover the latest features in Office 2021, including new ways to create content, manage data, and communicate effectively.

Get a brief explanation about logging on as an administrator and making changes to other user accounts on your computer.

How to use conditional formatting in Excel to visually explore, analyze, and identify patterns and trends.

Learn how to make labels in Word. You can create and print a full page of address labels or nametags. Get started on how to print labels from Word.

Help to decide whether you should install the 32-bit Office version or the 64-bit Office version. Which version is right for you depends on how you plan to use Office. Find out about choosing between 32-bit Office and 64-bit Office.

This troubleshooter assists customers whose machines are not yet updated to the latest release, Windows 10 Version 1607. This update will initially be released only to a small set of targeted customers. This set will expand over time. Windows users can start the assistant from this article.

Use Version History to view previous versions of files stored in OneDrive or SharePoint libraries.

[設定] の [Windows Update] ページにアクセスするための推奨オプションなど、Windows 11 をインストールする方法をご覧ください。

Get an overview of SharePoint. Learn about sites, lists and libraries, permissions, content types and workflows. In addition, read about some of the social features in SharePoint.