Download and install or reinstall Office 2021, Office 2019, or Office 2016 (2025)

Table of Contents

Install Microsoft 365 or Office

Microsoft 365 or Office 2024
Office 2021, 2019, 2016

Redeem a product key

Redeem or activate

Product keys

Enter your product key
Product key FAQ
Change your product key

Activate Office or Microsoft 365

Activate Office or Microsoft 365 for Windows
Activate Office or Microsoft 365 for Mac
Deactivate an installation of Office or Microsoft 365
Unlicensed Product error

Language, 32/64-bit, and other options

Language pack for Office or Microsoft 365
64-bit or 32-bit version of Office or Microsoft 365
Offline installer

Install other apps

Install Project
Install Visio
Install Skype for Business

Set up mobile devices

Set up apps and email on mobile

Office or Microsoft 365 updates

Update Office or Microsoft 365 on PC
Update Office or Microsoft 365 for Mac
Upgrade macOS

Upgrade to the latest version

How do I upgrade my version?
End of support for Office 2016 and Office 2019
End of support for Office 2013
End of support for Office 2010
End of support for Office 2019 for Mac
End of support for Office 2016 for Mac
What Windows end of support means for Office and Microsoft 365

Troubleshoot and uninstall

Troubleshoot installing Office or Microsoft 365
Find Office or Microsoft 365 applications
Office or Microsoft 365 is taking long to install
Uninstall Office or Microsoft 365 from a PC
Uninstall Office or Microsoft 365 for Mac

Applies To

Office 2021 Office 2021 for Mac Office 2019 Office 2019 for Mac Office 2016 Office 2016 for Mac

Important: Support for Office 2016 and Office 2019 will end on October 14, 2025 and there will be no extension and no extended security updates. All of your Office 2016 and Office 2019 apps will continue to function. However, you could expose yourself to serious and potentially harmful security risks.

If this is the first time you're installing Office you may have some setup steps to do first. Expand the learn more section below.

However, if you're reinstalling Office, and you've already redeemed a product key and have an account associated with Office, then go to the section sign in to download Office.

Tip:If you're a small business owner looking for more information on how to get Microsoft 365 set up, visit .

Install Office for the first time

Some Office 2021, Office 2019and Office 2016 products come with a product key. If yours did, before installing Office for the first time, sign in with an existing or new Microsoft account and enter your product key at office.com/setup. Redeeming your key is what links your account with Office so you only have to do this once. Already did this? Select the tab below for the version you're trying to install.

Reinstall Office

If Office originally came pre-installed and you need to reinstall on it on the same device or a new device, you should already have a Microsoft account associated with your copy of Office. This is the account you'll use to install Office following the steps below. If you need to uninstall Office first, see Uninstall Office from a PC or Uninstall Office for Mac.

Note:The steps to install the 2021, 2019, or 2016 versions of Office Professional Plus, Office Standard, or a stand-alone app such as Word or Project might be different if you got Office through one of the following:

Microsoft Workplace Discount Program(formerly known as Home Use Program): If you bought Office for personal use through your company, see Install Office through Workplace Discount Program.
Volume license versions: If you work in an organization that manages your installations, you might need to talk to your IT department. Some organizations have different methods to install Office on multiple devices.
Third-party seller: You bought Office from a third-party and you're having problems with the product key.

Sign in to download Office

Go to your Microsoft account dashboard, and if you're not already signed in, select Sign in.
Sign in with the Microsoft account you associated with this version of Office.

Forgot your account details? See I forgot the account I use with Office.
From the Overview page, select Office appsand on that page,find the Office product you want to install and select Install.

To install Office in a different language, or to install the 64-bit version, use the dropdown to find more options. Choose the language and bit version you want, and then select Install.

You're now ready to install Office. Select the tab below for the version you're trying to install.

Install Office 2021, 2019, or 2016 on a PC

Remember a one-time purchase version of Office is licensed for one install only.

Depending on your browser, select Open file(in Edge or Internet Explorer), Setup (in Chrome), or Save File (in Firefox).

If you see the User Account Control prompt that says, Do you want to allow this app to make changes to your device? select Yes.

The install begins.
Your install is finished when you see the phrase, "You're all set! Office is installed now" and an animation plays to show you where to find Office applications on your computer. Select Close.

Follow the instructions in the window to find your Office apps. For example depending on your version of Windows, select Start and then scroll to find the app you want to open such as Excel or Word, or type the name of the app in the search box.

Installation or sign in issues?

If you're unable to install Office see Troubleshoot installing Office for more help.

Activate Office

Start using an Office application right away by opening any app such as Word or Excel. Can't find Office after installing?

In most cases, Office is activated once you start an application and after you agree to the License terms by selecting Accept.
Office might activate automatically. However, depending on your product you might see the Microsoft Office Activation Wizard. If so, follow the prompts to activate Office.

If you need activation help, see Activate Office.