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 365 to an existing Microsoft 365 subscription, or enter a …

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.

Find your Office product key Applies To Office 365 Office 2019 Office 2016 Office 2013 Many tasks for Office products don't require a product key because your Microsoft account takes care of them instead.

Microsoft 365 or Office for home. If you have a home product and it came with a product key*, before installing for the first time (or sharing it if you have Microsoft 365 Family), you need to redeem your product key first. Go to office.com/setup and sign in with an existing or new Microsoft account and then enter your product key to redeem it ...

You'll receive a product key if you buy a one-time purchase Office or individual Office apps, but you won't need or receive a product key for Microsoft 365. To renew your Microsoft 365 subscription, you can buy an Microsoft 365 product key card from a retailer and redeem the key at https://microsoft365.com/setup .

Some Office 2019, Office 2016, and Office 2013 products come with a product key. If yours did, before installing Microsoft 365 for the first time, sign in with an existing or new Microsoft account and enter your product key at office.com/setup .

Learn how to find your product key for Office 2010 or locate a lost Microsoft Office 2010 product key.

Tap the Office key and the Office app will open, if you have it installed. If you don't have it installed, then Office.com will open in your default browser. There are also several shortcuts where you press the Office key in combination with another key.

Get help with product key errors, or geographical region errors, when you redeem a new Office product key on Office.com/setup.

You can run your Office 2007 programs up to 25 times before you're required to enter a Product Key. After this grace period, if you haven't entered a valid Product Key, the software goes into Reduced Functionality mode and many features are unavailable.