Install Microsoft 365 2019 or 2016 on a PC. Remember a one-time purchase version of Microsoft 365 is licensed for one install only. Depending on your browser, select Open file (in Edge or Internet Explorer), Setup (in Chrome), or Save File (in Firefox).

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Use the Office offline installer to install Office 2016 or Office 2013 if you don't have an active Internet connection or you're having problems with slow speed or unreliable connections.

If you cannot open your Outlook data file or suspect that the file is damaged, use the Inbox Repair tool (scanpst.exe) to repair errors in the file.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

Download the automated tool. At the bottom of the browser window, select Run to launch the SetupProd_OffScrub.exe file. Select the version you want to uninstall, and then select Next. Follow through the remaining screens and when prompted, restart your computer.

If you're upgrading to Excel 2019 for Windows from an earlier Excel version, you'll still have all the features you're used to—and you'll notice a few new ones as well!

Uninstall Office from a PC. Office 2021 Office 2019 Office 2016 More... The following steps describe how to uninstall Microsoft 365 products on a PC (laptop, desktop, or 2-in-1). For Mac, see Uninstall Office for Mac.

Find the software, and then select Product key/Install. Note: If you're having problems installing an app from the Microsoft Store, see Fix problems with apps from Microsoft Store. If you're looking for download and installation instructions for a specific product, see the following sections.

The steps below are for the subscription versions of Project Online, and the non-subscription versions of Project 2021, 2019, or 2016. Project is sold as a stand-alone application so if you don't have it yet, Buy or try Project.