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 …

Sign in with your Microsoft account and enter your product key to get started. For help, go to office.com/support.

Jun 24, 2025 · This article provides a comprehensive guide to finding your Microsoft 365 product key using various methods, focusing on both conventional approaches and more nuanced scenarios.

Jul 8, 2025 · This wikiHow teaches you how to locate the product key for your version of Microsoft Office.

Check each product page for other buying options. Need help?

To use Microsoft 365 on your new device, you can activate Microsoft 365 as a 1-month trial of Microsoft 365 Family. You can also buy Microsoft 365 or a non-subscription version of Office, add Microsoft …

Aug 4, 2025 · A product key is a 25-character alphanumeric code that represents a prepaid license for a Microsoft business product or service. If you bought a Microsoft business product or service from a …

Oct 23, 2025 · If you bought a retail version of Microsoft Office, you'll need to link the 25-digit product key included on the receipt or product card to your Microsoft account first. If you have an Office …

Jul 13, 2025 · To access these powerful applications, you need to activate your subscription using a valid product key. This guide will walk you through the straightforward process of activating your …

Jul 2, 2025 · Traditionally, software activation relied heavily on a 25-character alphanumeric product key. While Microsoft 365 leverages digital entitlements linked to your Microsoft Account, the product key …