You can install Microsoft Office 2013, 2016 or 2019 directly through your Microsoft account online.
All you need to do is sign in to your Microsoft account on the Microsoft or Microsoft Office websites and follow the instructions.
Note: Make sure you sign in with the account you want to be associated with the purchase you made for your Microsoft Office product. Each Office purchase comes with a unique product key that can only be used once on one computer.
How do I install Microsoft Office on Microsoft Account?
For help on how to complete your Office installation on a Windows PC, just follow these steps:
Step 1: Sign in to your Microsoft account on www.office.com/setup
Note: If you don’t already have a Microsoft account, you will first need to make one

Step 2: Enter your 25-character product key, country or region, and preferred language in the spaces provided, and then click Next. This will link your copy of Office to your account.
Step 3: Go back to your Microsoft Account to install office. Depending on your version of Office, you can either sign in at https://account.microsoft.com/services or www.office.com
- From https://account.microsoft.com/services – go to Services and Subscriptions, find the Office product you want to install, and then click Install
- From www.office.com – in your account homepage select Install Office
Note: for Office 2013 and 2016, it will automatically install the 32-bit version of Office, while for Office 2019, it will automatically install the 64-bit version. To change which version you want, as well as language settings, look for another link on your account page that says Other install options, or Other options and pick your desired version from here
Step 4: If you see a message saying, “Do you want to allow this app to make changes to your device”, select Yes and the installation will start.
Step 5: You’ll get a notification once the installation is complete. You can now close the window and open any Office application. Agree to the License terms and Office should be immediately activated.
Note: if Office doesn’t automatically activate, just follow the prompts to complete the activation
Install button Office Isn’t working
If you’re stuck on Step 3 above because the install button on your account isn’t working, first make sure whether your subscription has expired. If it’s still active but nothing happens when you click Install, then try one of the following methods to install Office:
Method 1: Run the Installation File
Depending on your web browser, check the bottom of your screen for a notification asking you to Run or Save the installation file when you click Install. You may need to click on the notification and run the file before the installation will begin.
Method 2: Use “private” browsing on your web browser
Most web browsers have a “private” or “incognito” browsing option. Try signing in to your Microsoft office account from a new private browsing window and then try the installation button again.
Method 3: Open Internet Explorer Without add-ons
Press Windows+R on your keyboard to open the Run window. In the search box, type: iexplorer-extoff and click OK. Now try installing Office again
Method 4: Delete temporary files
Note: deleting temporary files will remove all temporarily saved information on your web browser including the list of websites you’ve visited, your cookies and information typed into forms such as passwords. It won’t delete your list of links or favorites saved
Open Internet Explorer and press Alt+X. Choose Internet Options and click on the General tab. Under Browsing History, click Delete. Select each category you want to delete from the list. Now try signing into your Microsoft account again to install Office.
Method 5: Reset your web browser’s settings
Note: resetting your Internet Explorer settings will return it to its original state when you first installed it. This means all your links or favorites will also be deleted. Once this is done, it can’t be reversed
Close any web browser windows or programs running. Open Internet Explorer and click on the Tools file menu tab. Select Internet Options and open the Advanced tab, then select Reset. In the Reset Internet Explorer Settings box, click Reset again and then click OK when it’s finished.
Restart your computer and then try signing in to your Microsoft account again to install Office.
Requirements Before Installing Microsoft Office
Before starting the installation process, it’s important to verify that your computer meets Microsoft’s minimum requirements. A compatible Windows operating system, stable internet connection, Microsoft account, and valid Office product key are all necessary for a successful installation.
Users should also ensure that previous Office installations have been completely removed if they plan to install a different version. Conflicting Office files can sometimes cause activation issues, installation failures, or missing application components after setup.
Preparing your system beforehand helps ensure a smooth installation experience and reduces the chances of troubleshooting later.
Which Microsoft Office Version Should You Install?
Microsoft offers several Office versions designed for different types of users. Choosing the correct version depends on your requirements, budget, and preferred licensing model.
Office 2019 and Office 2021 are available as one-time purchases, making them ideal for users who prefer owning their software permanently. Microsoft 365, on the other hand, operates through a subscription model and provides ongoing feature updates, cloud storage, and access across multiple devices.
Business users often prefer Microsoft 365 due to its collaboration features, while home users may find standalone Office editions more suitable for their needs. Understanding the differences before installation can help you choose the most appropriate solution for your environment.
Common Microsoft Office Installation Problems and Fixes
Although the installation process is usually straightforward, some users may encounter issues during setup or activation.
One common problem occurs when the product key has already been associated with another Microsoft account. In this situation, users must sign in using the original account that was used during activation.
Another issue involves incomplete downloads caused by unstable internet connections. Restarting the installation process and temporarily disabling security software can often resolve these problems.
Users may also experience activation errors after installation. In most cases, signing into the correct Microsoft account and running Office updates will successfully complete the activation process.
Keeping Windows updated and using the latest Office installer can significantly reduce installation-related issues.
Frequently Asked Questions
Can I install Microsoft Office on more than one computer?
The number of devices you can install Office on depends on your license type. Microsoft 365 subscriptions generally support multiple devices, while one-time purchase versions are usually limited to a single PC.
Do I need a Microsoft account to install Office?
Yes. Most modern versions of Microsoft Office require a Microsoft account to redeem the product key, manage subscriptions, download installation files, and activate the software.
What should I do if Office won’t activate after installation?
Make sure you’re signed into the same Microsoft account used to redeem the product key. Also check your internet connection and run Office updates before attempting activation again.
Can I reinstall Microsoft Office after replacing my computer?
Yes. If your license allows transfers, simply sign into your Microsoft account and download Office again from the Services and Subscriptions section.
How long does it take to install Microsoft Office?
Installation time varies depending on internet speed and computer performance. Most Office installations are completed within 10 to 30 minutes.
Can I install Microsoft Office without a product key?
Microsoft 365 subscribers can usually install Office directly through their Microsoft account. However, perpetual versions such as Office 2019 and Office 2021 typically require a valid product key during setup.
What’s the difference between Microsoft 365 and Office 2021?
Microsoft 365 is a subscription service that includes ongoing updates, cloud storage, and additional features. Office 2021 is a one-time purchase that receives security updates but not major feature upgrades.
Why is the Install Office button missing from my Microsoft account?
This may happen if the product key hasn’t been redeemed, the subscription has expired, or you’re signed into a different Microsoft account than the one associated with your Office purchase.
Can I install a 32-bit version instead of a 64-bit version?
Yes. Microsoft allows users to choose between 32-bit and 64-bit installations through the advanced installation options available in their Microsoft account.
How do I completely remove an old Office installation before installing a new version?
You can uninstall Office through Windows Apps & Features or use Microsoft’s Office Removal Tool to clean up any remaining files before installing a newer version.
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