enter your product key

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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 tải về and install Office, or you can renew your Microsoft 365 subscription.

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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.

Having problems with your product key?

Example of an Office or Microsoft 365 product key:


Shows an example of an Office product key

Microsoft 365, Office 2021, Office 2019, Office năm 2016, and Office 2013 (PC and Mac)

Note: Support has ended for Office năm 2016 for Mac. Learn more

To redeem a new purchase

Step 1: Go vĩ đại www.office.com/setup or Microsoft365.com/setup.

Step 2: Sign in with your Microsoft trương mục, or create one if you don't have one. Be sure vĩ đại remember this trương mục sánh that you can install or reinstall Office later, without a product key.

Important: If you're renewing your Microsoft 365 subscription, enter the Microsoft trương mục that's associated with your subscription. I can't remember my Microsoft trương mục.

Step 3: Enter your product key, without hyphens, if prompted. If you don't see the option vĩ đại enter your product key, it was entered for you automatically.

Step 4: Follow the prompts vĩ đại finish the redemption process.

To install or reinstall Office

If you see the error This product key has already been used when you enter your product key on www.office.com/setup or Microsoft365.com/setup, this means your product key has already been redeemed and is no longer needed.

Instead, use your Microsoft trương mục vĩ đại sign in vĩ đại trương mục.microsoft.com and install your Office product.

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

Microsoft Workplace Discount Program

These steps apply only vĩ đại Office Professional Plus, Visio Professional, or Project Professional.

Step 1: Start an Office ứng dụng, lượt thích Word, Project, or Visio, depending on your purchase.

Step 2: In the Sign in vĩ đại mix up Office window, select I don't want vĩ đại sign in or create an account (it's a small links at the bottom of the window).

Step 3: Enter your Office product key, without hyphens. If you don't have your key, see get your Workplace Discount Program product key.

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Shows the links that you click vĩ đại enter your Microsoft Workplace Discount Program product key

Microsoft Store

Step 1: Go vĩ đại www.microsoftstore.com and sign in (upper right-hand corner) with the Microsoft trương mục that you used vĩ đại buy Office.

Step 2: After you sign in, select your name in the upper right-hand corner, and then select Order History.

Step 3: Locate the Office one-time purchase or individual Office ứng dụng, and then select Install Office vĩ đại view your product key (this doesn't actually install Office).

Step 4: Select Install Office again in the window where the product key appears.

Step 5: On the Hi. Let's get started page, follow the prompts vĩ đại sign in again and associate your product with your Microsoft trương mục.

Shows the Order History page in the Microsoft Store

Microsoft 365 Business Standard

Step 1: Go vĩ đại https://microsoft365.com/setupbusiness

Step 2: Enter Office product key without hyphens, and then select Next.

Step 3: Follow the prompts vĩ đại 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:

  • Office product keys

  • Microsoft Workplace Discount Program product keys

  • Office 2010 product keys

  • Office 2007 product keys

  • Office for Mac 2011 product keys

My product key isn't working

If your Office product key doesn’t work, or has stopped working, you should tương tác 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 tải về links vĩ đại Microsoft software, and sometimes they’re distributed with software truyền thông that is unauthorized for resale, such as promotional truyền thông, original equipment manufacturer reinstallation truyền thông, or other Microsoft program-specific truyền thông.

Contact support

If you still need help with your product key, visit our Microsoft tư vấn page for help.

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