Learn how to activate Office that is pre-installed on new Windows 10 PCs or using a new product key.

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 …

Alternatively, if you have successfully installed Microsoft 365 or Office on your computer, but need help with activating or reactivating it, please go to: For Microsoft 365 - Activate Office. For …

Improve security, evaluate and mitigate the risks of running macros, and see how to enable or disable macros for Microsoft 365.

Copilot is available in the Home tab of Word, Excel, PowerPoint, and Outlook on the web if you are a Copilot subscriber. If you also have a Microsoft 365 subscription that includes the …

When you open a file that has ActiveX controls, the yellow Message Bar appears with a shield icon and the Enable Content button. If you know the controls are from a reliable source, use …

You can directly install add-ins from this page or select More Add-ins to explore. Select the add-in you wish to activate and right click to see option to activate. If you cannot find the add-in that …

Write macros. Run macros that you previously recorded. Use XML commands. Use ActiveX controls. Create applications to use with Microsoft 365 programs. Use form controls in …

This article provides step-by-step instructions on how to activate Office for Mac. If you're running into errors or issues with installing or activating Office on your Mac, see What to try if you can't …

Using Copilot in Excel helps you create and understand formulas, analyze your data for insights, and more. You can also use Copilot to import data from outside of Excel.