Where to enter your Office product key

If your purchase of Office came with a product key, you can enter your product key to install Office or to renew your Office 365 subscription. An Office product key uses a combination of 25 letters and numbers and looks like this:


Tip: If you already entered your product key, you don't have to enter it again to install Office. Just go to Install Office on your PC or Mac to learn how.

I can't find my product key

My product key isn't working

Here's where to enter your Office product key:

Office version to install or activate

Where to enter your product key to install Office

Office 365 for home, Office 2016, and Office 2013 (PC and Mac)

This refers to Office 365 subscriptions, like Office 365 Home, Personal, or University, and one-time purchases of Office 2016 and 2013, such as Office Home & Student, Office Home & Business, and Office Professional.

In your web browser, go to http://www.office.com/setup, sign in or create a Microsoft account, and then enter your product key. Need help? Watch this video for an overview of the process, or get help with product key errors.

You can also go to http://www.office.com/setup to renew or extend your Office 365 subscription by using a product key. Need help? See Renew Office 365 for home.

Office that was preinstalled on a new computer or device

On your new computer or device, go to Start > Word 2016 > Activate.

If Word 2016 isn't there, go to Start > Microsoft Office > Activate.

Need help? See Try, buy, or activate Office that's pre-installed on a new computer.

Office 2010, Office 2007, or Office 2011 for Mac

In your web browser, go to https://www.microsoft.com/software-download/office and enter your product key.

Office 365 for business, education, or government

This refers to Office 365 subscriptions like Office 365 Business Premium and Office 365 Enterprise E3.

See Enter your product key for Office 365 for business for help.

Volume license versions of Office Professional Plus

If you have a volume license key, you enter the key in Office, not on a website. See Activate volume editions of Office for help.

Watch a video on how to enter your Office 365, Office 2016, or Office 2013 product key

Here's a video that illustrates the process for signing in with a Microsoft account and entering your product key for Office 365, Office 2016, and Office 2013. Note that you won't be prompted about subscription renewals or payment information if you enter a product key for Office Home & Student, Office Home & Business, or Office Professional.

Your browser does not support video. Install Microsoft Silverlight, Adobe Flash Player, or Internet Explorer 9.

My product key isn't working

First, make sure you're entering your product key on the right site as described earlier, and that you're entering the key correctly.

If your Office product key doesn’t work, or has stopped working, you should contact the seller and request a refund. If you bought a product key separate from the software, it’s very possible the product key was stolen or otherwise fraudulently obtained, and subsequently blocked for use. Unfortunately, there are many dishonest sellers who offer stolen, abused, or otherwise unauthorized Microsoft product keys for sale. Sometimes these product keys are printed on counterfeit labels or cards with a download link to Microsoft software, and sometimes they’re distributed with software media that is unauthorized for resale, such as promotional media, original equipment manufacturer reinstallation media, or other Microsoft program-specific media.

Still need help? Contact Support

If you need help with your product key, visit our Microsoft support page for assistance.

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