Learn how to sign in, run the setup, and activate Microsoft 365 or Office 2021 on your device. Find out the system requirements, product keys, and troubleshooting tips for Office 2021 installation.

Learn about the features, support, and system requirements of Office 2021 and Office LTSC for Windows and Mac. Compare them with Microsoft 365 subscription plans and find out how to install and use them.

Microsoft 365 is a subscription service that offers the latest versions of Office apps, cloud storage, and technical support. Office 2021 is a one-time purchase that does not include upgrades or online features.

What's new in Word 2021 for Windows. Word 2021 for Windows enables you to create compelling content and includes co-authoring, new stock media from the Office Premium Creative Content collection, and new Draw tab additions such as Point Eraser, Ruler, and Lasso.

Office 2021, Office 2019, Office 2016, or Office 2013 versions available as one-time purchases: The following products include the fully installed Office applications. Office Home & Student Office Home & Business Office Professional. Stand-alone Office 2021, Office 2019, 2016, or 2013 apps available as one-time purchases Word Excel

Excel 2021 for Windows allows you to collaboratively work with others and analyze data easily with new Excel capabilities including co-authoring, Dynamic Arrays, XLOOKUP, and LET functions. Note: Some features listed below are not included in Excel LTSC 2021 for commercial customers.

Visual updates for Office for the web As announced in June 2021, Windows 11 brings a fresh experience and a new look. Shortly after that, Office got a visual refresh for Windows 11 and 10 as well. Now we're bring that new same new look to Microsoft's Office for the web applications.

PowerPoint 2021 for Windows lets you create compelling content with the addition of features including co-authoring, Ink Replay, improved slide show recording, new stock media from the Office Premium Creative Content collection and new Draw tab additions such as Point Eraser, Ruler, and Lasso.

If you need support with Office 2021, 2019, or previous versions, these resources may be helpful for you. Get Microsoft 365 support, help, and learning resources. Organize your life, expand your creativity, and protect what’s important with Microsoft 365.

What's new in Outlook 2021 for Windows - Microsoft Support. Outlook 2021 for Windows lets you better manage your inbox with the addition of new capabilities including Search at Top and Translator.