Locate your product key for Windows 10 or Windows 11. Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

There are three methods to which you can activate your product: Online via the internet, by telephone using our automated systems, and by a live support advocate. Online: When you begin activation, Windows will try to use your internet connection to activate online.

Press the Xbox button on your controller to open the guide, and then go to Profile & system > Settings > Account > Subscriptions. Select the subscription that you want to manage. From here, you can view your plan, expiration date, billing history, subscription status, and change how you pay.

Follow the steps in Activate by telephone, described above. Uninstall Office from the original computer. Read the Software License Terms to review terms on transferring Office. Open an Office application, such as Word. (Here's how to find Office on your computer.)

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Transfer your Office license to another device or another person. You can install a one-time purchase of Office such as Office Home & Business, Office Home & Student, or Office Professional Office on only 1 PC or Mac.

For most Microsoft 365 subscriptions and versions of Office (2013 and later), you need to associate an account with your product. This is the account you use to sign in to Microsoft365.com and what you use to install or reinstall the apps, or to manage your subscription.

License terms, notices, and acknowledgements, if any, for the third party applications may be accessible online at https://aka.ms/thirdpartynotices or in an accompanying notices file.

To see what Office for home products you have a license for, sign in with your Microsoft account to Services and subscriptions.