Where to enter your Office 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 download and install Office, or you can renew your Microsoft 365 subscription.
Tip:Get tech expertise with Business Assist. Connect with our small business advisors for help making Microsoft 365 products work for you and everyone in your business.Learn more.
Example of an Office or Microsoft 365 product key:
XXXXX-XXXXX-XXXXX-XXXXX-XXXXX
Microsoft 365, Office 2021, Office 2019, and Office 2016 (PC and Mac)
Note:Support has ended for Office 2016 for Mac.Learn more
To redeem a new purchase
Step 1:Go tooffice /setuporMicrosoft365 /setup.
Step 2:Sign in with your Microsoft account, or create one if you don't have one. Be sure to remember this account so that you can install or reinstall Office later, without a product key.
Important:If you're renewing your Microsoft 365 subscription, enter the Microsoft account that's associated with your subscription.I can't remember my Microsoft account.
Step 3:Enter your product key, without hyphens, if prompted. If you don't see the option to enter your product key, it was entered for you automatically.
Step 4:Follow the prompts to finish the redemption process.
To install or reinstall Office
If you see the errorThis product key has already been usedwhen you enter your product key onoffice /setuporMicrosoft365 /setup,this means your product key has already been redeemed and is no longer needed.
Instead, use your Microsoft account to sign in toaccount.microsoftand install your Office product.
Note:If you're trying to allow up to 5 other people to install Office using your Microsoft 365 Family subscription, seeHow to share your Microsoft 365 Family subscription benefit.
Microsoft Workplace Discount Program
These steps apply only to Office Professional Plus, Visio Professional, or Project Professional.
Step 1:Start an Office app, like Word, Project, or Visio, depending on your purchase.
Step 2:In theSign in to set up Officewindow, selectI don't want to sign in or create an account(it's a small link at the bottom of the window).
Step 3:Enter your Office product key, without hyphens. If you don't have your key, seeget your Workplace Discount Program product key.
Microsoft Store
Step 1:Go tomicrosoftstoreand sign in (upper right-hand corner) with the Microsoft account that you used to buy Office.
Step 2:After you sign in, select your name in the upper right-hand corner, and then selectOrder History.
Step 3:Locate the Office one-time purchase or individual Office app, and then selectInstall Officeto view your product key (this doesn't actually install Office).
Step 4:SelectInstall Officeagain in the window where the product key appears.
Step 5:On theHi. Let's get startedpage, follow the prompts to sign in again and associate your product with your Microsoft account.
Microsoft 365 Business Standard
Step 1:Go tohttps://microsoft365 /setupbusiness
Step 2:Enter Office product key without hyphens, and then selectNext.
Step 3:Follow the prompts to finish the redemption and setup process.
Having problems with your product key?
I can't find my product key
For help with finding your product key, select your version of Office below:
My product key isn't working
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.
Contact support
If you still need help with your product key, visit ourMicrosoft support pagefor help.