To continue viewing Office files for free, we recommend installing the Office apps or storing documents in OneDrive or Dropbox, where Word Online, Excel Online or PowerPoint Online opens them in your browser. For the mobile apps, visit the store for your device.

Learn how to download and install apps you need from your Microsoft 365 business subscription.

Download the offline installer from your account portal. Important: Before you begin, make sure your PC or Mac meets the system requirements. Note: If you're trying to install Microsoft 365 that you got through your work or school and you already signed in with your work or school account, don't follow these instructions.

Download and install or reinstall Office 2021, Office 2019, or Office 2016. Important: Support for Office 2016 and Office 2019 ended on October 14, 2025 and there will be no extension and no extended security updates. All of your Office 2016 and Office 2019 apps will continue to function.

The newest version of Microsoft Office eliminates the need to use a special viewer for Word documents.

Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.

Learn how to find your Office apps in Windows 10 by searching for them in the search box on the taskbar.

The newest version of Microsoft Office eliminates the need to use a special viewer for Word documents.

Use the Microsoft 365 setup troubleshooter to install Microsoft 365, Office 2021, Office 2019, or Office 2016 on your Windows PC. Select the button below to start the setup troubleshooter. Use the Microsoft 365 activation troubleshooter to resolve Microsoft 365 subscription activation issues.

Depends on your Microsoft 365 or Office installation type (Click-to-run or MSI-based), you'll see the following options to proceed with the repair. Follow the steps for your installation type. Repair broken Office app installations.