Use the Office offline installer

Applies To
Office 2024 Office 2021 Office 2019 Office 2016 Microsoft 365 for home Office 365 Small Business Microsoft 365 admin Office 365 operated by 21Vianet - Small Business Admin

To help with issues you might encounter when installing Microsoft 365 because of slow speeds or unreliable connections, follow the steps below that are specific to your plan. You need to be connected to the internet to download this installer file, but once that's done, you can then install Microsoft 365 offline on a PC at your convenience. 

Offline installer steps

The steps below differ if your Microsoft 365 product is part of an Office for home or Office for business plan, so you need to select the correct tab for your product.

If you are not sure of what version you have, go to About Office: What version of Office am I using?

Select your plan

Step 1. Download the offline installer from your account portal

Important

Before you begin, make sure your PC or Mac meets the system requirements.

  1. Select the download button below:

    Note

    If you're trying to install Microsoft 365 that you got through your work or school and you already signed in with your work or school account, don't follow these instructions. Select the Office for business tab from above instead.

  2. In the Install window, select Offline installer from the Choose a version drop-down.

  3. Select the language you want to install the Microsoft 365 apps in. Select Install.

  4. When you're prompted, from the bottom of your browser window, select Save (in Edge), Open (in Internet Explorer), Open when done (in Chrome), or Save File (in Firefox). The file will begin downloading on your PC.

  5. Once the download is complete, locate the Download folder and open it. Double-click the O365HomePremRetail.img file. If prompted, select Open.

  6. This should open a virtual drive window. If there isn't a virtual drive window after opening the IMG file, open File Explorer and locate the new virtual drive, for example (D:). This drive contains the Microsoft 365 installation files. Double-click the virtual drive to open it. If you don't have the new drive, locate the image file you downloaded and double-click it again. The new drive should appear in your directory.

    Note

    If you already have a drive labeled (D:), Microsoft 365 creates a virtual drive with the next available letter, which would be (E:) (as shown in the next step below).

    Save the image: You can also choose to save a copy of this virtual drive to a thumb drive or disc for later use.

Step 2. Install Office

  1. Open the Office folder in the virtual drive, and then select either the Setup32.exe to install the 32-bit version of Microsoft 365, or Setup64.exe to install the 64-bit version to begin the offline installation. If you're not sure which version is right for you, go to Choose the 64-bit or 32-bit version of Office.

    Select the virtual drive which may be named D or the next available letter

    When you get the message, You're all set, you can access your Microsoft 365 applications.

  2. After your Microsoft 365 installation is complete, you need to activate Microsoft 365. Be sure you're connected to the Internet and then open any Office application, such as Word or Excel.
    In most cases, Office is activated once you start an application and after you click Accept to agree to the License terms. If you need activation help, go to Activate Office.

  3. After activating Office and before you start using it, make sure you have the latest update.
    In any Microsoft 365 app, for example Word, open a new or existing document, then select File > Account.
    From the Update Options drop-down list box, select Update Now.

    Select Update Now for the Update Options drop-down

Note

If you were installing a non subscription Office product, such as Office 2024, the license for that product will update soon after the install is completed.