Download, install, or reinstall Microsoft 365 or Office 2024 on a PC or Mac

Before You Start 

Make sure you have:

• A Microsoft account

• Your Microsoft 365 subscription or Office purchase

• A stable internet connection

• Enough storage space on your computer

• Your product key, if your purchase included one

How to Set Up Microsoft 365 

1. Open the Microsoft Setup Page

Open your web browser and go to:

Microsoft365.com/setup

If you have a product key, follow the instructions on the page to redeem it and connect the purchase with your Microsoft account.

2. Sign In

Use the Microsoft account associated with your Microsoft 365 subscription or Office purchase.

If you don't have an account, you may be asked to create one before continuing.

3. Enter Your Product Key

If your version came with a product key, enter it when requested.

Check the characters carefully before continuing. Once the key has been successfully associated with your account, you can continue with the installation process.

4. Download the Office Apps

After signing in, look for the option to install Microsoft 365 or your eligible Office version.

Choose the download or installation option provided for your computer.

5. Install on Windows PC

After the setup file downloads:

• Open the downloaded installer.

• Allow the installation to begin.

• Follow the instructions shown on the screen.

• Wait while the required applications are installed.

When installation finishes, open an Office application such as Word or Excel.

6. Install on Mac

On a Mac:

• Download the available installer.

• Open the downloaded installation file.

• Follow the on-screen instructions.

• Allow the installation to complete.

• Open Word, Excel, or another installed application.

You may need to sign in to activate the applications.

How to Reinstall Microsoft 365 or Office 

If Office was previously installed but is no longer working correctly, reinstalling it may help.

First, sign in to the Microsoft account connected with your purchase or subscription. Locate your available Office or Microsoft 365 installation option and download the installer again.

Before reinstalling, removing an existing Office installation may be necessary if the previous installation is damaged or causing conflicts.

Microsoft 365 Setup Not Working? 

Check your internet connection
A weak or interrupted connection can prevent the download or installation from completing.

Restart your computer
A simple restart can resolve temporary installation problems.

Check your Microsoft account
Make sure you are using the account associated with your Microsoft 365 subscription or Office purchase.

Check available storage
Make sure your computer has enough free space for the installation.

Close other applications
Temporarily closing unnecessary programs can make the installation process smoother.

Try the setup again
If the installation stops unexpectedly, restart the computer and try the setup process again.

Frequently Asked Questions 

Can I use Microsoft365.com/setup for a new product key?

Yes, the setup page can be used to redeem an eligible product key and associate it with a Microsoft account.

Can I install Microsoft 365 on a Mac?

Yes, compatible Microsoft 365 applications are available for Mac. Your specific subscription or license determines which applications and features you can use.

Can I reinstall Office after removing it?

In many cases, you can reinstall your eligible Office product by signing in with the Microsoft account associated with the purchase.

What if my product key isn't working?

Check that you entered the key correctly and that you are using the Microsoft account associated with the purchase. If the problem continues, use Microsoft's official account and product support resources.

Do I need a Microsoft account?

A Microsoft account is commonly required to manage Microsoft 365 subscriptions and many Office purchases, downloads, and activations.

Final Thoughts

Setting up Microsoft 365 or Office 2024 doesn't have to be complicated. Start by identifying your Microsoft account and product type, then follow the appropriate download and installation process for your Windows PC or Mac.