How to install Microsoft 365 on your computer

what to know

  • Go to, log in to your account, and purchase a Microsoft 365 subscription.
  • Return to and select Install Office . Download and run the .exe file. Follow the on-screen instructions to install Office on your computer.
  • Accept the license agreement by opening one of the apps, signing in, and activating Microsoft 365 Home.

Microsoft 365 is a subscription service that offers Office 2019 desktop apps (including Word, Excel, and PowerPoint) and Office Online web apps. This article describes how to register for the service and install the application on your computer. The instructions in this article apply to Microsoft 365 Home on Windows 10 devices.

Purchasing a Microsoft 365 subscription requires selecting the desired Office version and providing payment information.

  1. Open a web browser and visit

  2. Sign in to your Microsoft account.

  3. After you log in, the Office portal opens, where you can access Office Online applications and manage your Office subscriptions.

  4. Choose to buy an office .

  5. If you'd like to pay an annual fee, choose Buy Your Desired Office Subscription Now . Or, if you're willing to pay a monthly subscription, choose or purchase it for $9.99 per month .

    Do you want to try Microsoft 365 before buying? Choose Free Trial and sign up for a 30-day trial of Microsoft 365.

  6. Review the information in your shopping cart and select checkout .

  7. Select payment type. Choose a credit or debit card , PayPal or bank account .

  8. Enter payment details.

  9. Select Save .

  10. Select Place Order .

  11. Your order will be processed and you will receive a transaction receipt via email.

After purchasing a Microsoft 365 subscription, install Office on your computer.

  1. Use the computer where you want to install Office.

  2. Go to the Microsoft 365 portal page and log in to your Microsoft account.

  3. Choose to install Office .

  4. On the Microsoft 365 home page, select Install Office .

  5. On the Download and install Microsoft 365 home screen, select Install .

  6. Depending on the web browser you are using, you may be prompted to run or save the downloaded file. Select Run .

  7. Prepare Office and then install the Office applications.

  8. After installation is complete, Office may prompt you to enter your email or phone number to receive a download link for the Office mobile apps.

After Office is installed, activate your subscription.

To activate Office:

  1. Open one of the Office applications, such as Word.

  2. Enter your Microsoft email address and password.

  3. On the Accept License Agreement screen, select Accept .

  4. The Office application will open and you can create Office documents and spreadsheets.

You can install your Office subscription on as many devices as you need.

You can log into Office on five devices at the same time.

To install Office on another computer, use the computer where you want to install Office and log in to your Microsoft account. On the Office portal page, select Install Office .

To install Office on a mobile device, use the smartphone or tablet on which you want to install Office. Then, go to Google Play, Apple Store or Windows Store and download the app.

If other members of your household use Microsoft 365, they don't need to purchase a subscription. You can share your Microsoft 365 Family subscription with five other people.

When you share your Microsoft 365 subscription, everyone can access:

  • Apps : The latest versions of Office apps for PCs, Macs, tablets, and smartphones.
  • Cloud Storage : 1 TB of storage on OneDrive.
  • Skype calls : calls to mobile and landlines limited to 60 minutes per month.
  • Outlook email : 50 GB email storage.

Share a Microsoft 365 Family subscription:

  1. Sign in with the Microsoft account you used to set up Microsoft 365.

  2. On the Office portal page, select Install Office .

  3. Select the Share tab.

  4. Select Start Sharing .

  5. In the Shared Office window, select:

    • Invite via email : Send the link via email.
    • Invite via link : Create a link that you can copy and provide to the person via email, text message, or other means.
  6. When your family members receive the link, they use it to install Office on their computers.

Microsoft offers multiple subscription levels for Microsoft 365. Three levels are targeted at home users:

  • Microsoft 365 Series : Up to six users can share this subscription. Each user can install Office applications on all their devices and has access to 1 TB of OneDrive cloud storage.
  • Microsoft 365 Personal : This subscription is for one user, but you can install Office apps on all your devices. You also get access to 1 TB of OneDrive cloud storage.
  • Office Home & Student 2019 : This is a one-time purchase of Office that includes Word, Excel, and PowerPoint. You can only install Office apps on one PC or Mac, and that version doesn't come with any OneDrive cloud storage.
  • Go to and log in. Select "Install Office" and start the download. Once the download is complete, go to Finder > Downloads and double-click the installation file. Follow the installation prompts, enter your Mac username and password if prompted, and then select Install Software .

  • You can install Office 365 on all your devices and log in to up to five devices at the same time. This can include PC, Mac and mobile devices. If you're logged in on more than five devices, Office 365 automatically logs you out to stay within the limits.

  • Office 365 installation should take 15 to 30 minutes. If it takes longer or the installation seems to have stalled, there may be an issue with your internet speed or connection.