For a PC with no internet access, use the Microsoft 365 offline installer. For business plans, use the Office Deployment Tool (ODT).
- On a PC that has internet access, create a folder such as C:\ODT.
- Download and install the Office Deployment Tool.
- Open Notepad and create a configuration XML file based on the edition needed:
For Microsoft 365 Apps for enterprise, 64-bit:
<Configuration>
<Add OfficeClientEdition="64">
<Product ID="O365ProPlusRetail">
<Language ID="en-us" />
</Product>
</Add>
</Configuration>
Save it as installOfficeProPlus64.xml in C:\ODT.
For Microsoft 365 Apps for business, 64-bit:
<Configuration>
<Add OfficeClientEdition="64">
<Product ID="O365BusinessRetail">
<Language ID="en-us" />
</Product>
</Add>
</Configuration>
Save it as installOfficeBusRet64.xml in C:\ODT.
If a different language is needed, replace en-us with the required language ID.
- Open Run and download the installation files:
- Enterprise 64-bit:
c:\odt\setup.exe /download installOfficeProPlus64.xml
- Business 64-bit:
c:\odt\setup.exe /download installOfficeBusRet64.xml
- Wait for the download to finish. When complete, an Office folder appears inside C:\ODT.
- Copy the C:\ODT folder to the offline PC.
- On the offline PC, open Run and start installation:
- Enterprise 64-bit:
c:\odt\setup.exe /configure installOfficeProPlus64.xml
- Business 64-bit:
c:\odt\setup.exe /configure installOfficeBusRet64.xml
- If prompted by User Account Control, select Yes. The install begins.
- After installation, connect to the internet at least once to activate Office by opening an Office app and going to File > Account. Then use Update Options > Update Now to get the latest updates.
If the product is a consumer Microsoft 365 purchase instead of a business plan, the offline installer can also be downloaded from the account portal by selecting Offline installer from Choose a version, then opening the downloaded O365HomePremRetail.img, mounting it, and running Setup32.exe or Setup64.exe from the virtual drive.