Activate Office - Microsoft Support
Learn how to activate Office that is pre-installed on new Windows 10 PCs or using a new product key.
Where to enter your Office product key - Microsoft Support
If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product. After you enter your key, you can download and install Office, or you can renew your Microsoft 365 subscription.
Download, install, or reinstall Microsoft 365, Office 2024, or Office ...
If you need help activating Microsoft 365 or Office, see Activate Microsoft 365 or Office for Mac. If activation fails, see What to try if you can't install or activate Microsoft 365 or Office for Mac .
Reactivate Microsoft 365 or Office - Microsoft Support
For Microsoft 365 and Office 2021 - Download and install or reinstall Microsoft 365 or Office 2021 on a PC or Mac. For Office 2019, 2016 or 2013 - Download and install or reinstall Office 2019, Office 2016, or Office 2013 .
Unlicensed Product and activation errors in Office
If Office activation fails, you'll see Unlicensed Product or Non-commercial use / Unlicensed Product in the title bar of your Office apps, and most features of Office are disabled. To restore all features of Office, you'll need to fix the problem that's causing activation to fail.
Activate Office after reinstalling or installing on a different device
If you haven't installed Office on another computer yet, follow the instructions in Install Office on your PC or Mac. Follow the steps in Activate by telephone, described above. Uninstall Office from the original computer.
Get help with product key errors on Office.com/setup
Get help with product key errors, or geographical region errors, when you redeem a new Office product key on Office.com/setup.
Activation d’Office - Support Microsoft
Découvrez comment activer Office préinstallé sur de nouveaux PC Windows 10 ou à l’aide d’une nouvelle clé de produit.
Use the Office offline installer - Microsoft Support
Step 2: Activate and update Office. After your Office installation is complete, you need to activate Office. Be sure you're connected to the Internet and then open any Office application, such as Word or Excel.
Deactivate an installation of Office - Microsoft Support
Learn how to deactivate an Office install that you shared with someone or deactivate an Office install so you can install it on another device.