Microsoft 365 Installation Problems

How to Deploy Microsoft 365 Offline and Manage Office Coexistence

Tauseeq Magsi Oct 8, 2026 869 views

Question details

Organizations need to determine Office version coexistence compatibility and learn the best method for deploying Microsoft 365 Business Standard in an offline or on-premises environment.

How to Deploy Microsoft 365 Offline and Manage Office Coexistence

Product: Microsoft 365
Device & OS: not provided
Scenario: Planning an organizational rollout of Microsoft 365 where offline deployment is required and older legacy Office versions might still be present on workstations.
Observed behavior: Administrators require clear steps to handle conflicting Office installations and properly utilize the Office Deployment Tool for offline setups without triggering installation failures.

Before you start

Ensure you have administrative privileges on the target workstations and have downloaded the latest Office Deployment Tool (ODT) from the official Microsoft Download Center.

Solution 1Recommended

Deploy Microsoft 365 Offline Using the Office Deployment Tool

Use the Office Deployment Tool (ODT) and a customized configuration XML file to download and install Microsoft 365 on offline workstations.

The Office Deployment Tool allows administrators to download the necessary Microsoft 365 installation files to a local network share or USB drive. From there, client PCs can install the software without needing a direct internet connection.

Create a Configuration File

Visit the Office Customization Tool (config.office.com) in your web browser to generate a tailored 'configuration.xml' file. Ensure you specify the local network path in the 'SourcePath' attribute.

Download the Installation Files

Open Command Prompt as an administrator on a device with internet access. Navigate to the folder containing the ODT and run the command: 'setup.exe /download configuration.xml' to fetch the core files.

Install on Offline Workstations

Move the ODT, the configuration file, and the downloaded 'Office' folder to the offline workstation or local server. Open Command Prompt as an administrator on the target machine and run: 'setup.exe /configure configuration.xml' to initiate the offline installation.

Deploy Microsoft 365 Offline Using the Office Deployment Tool

Network Licensing Check: Even though the deployment is offline, users will eventually need a brief internet connection to activate their Microsoft 365 licenses upon first launch.

Solution 2

Manage Office Version Coexistence and Compatibility

Determine which existing Office versions can remain and remove conflicting legacy installations before deploying Microsoft 365.

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Frequently Asked Questions

Can I install Microsoft 365 and Office 2016 on the same computer?

Microsoft generally does not support installing Microsoft 365 alongside older MSI-based Office versions like Office 2016 or 2013. You should uninstall the older version to prevent application crashes and file association conflicts.

How do I easily create the configuration XML file for offline deployment?

You can use the web-based Office Customization Tool (OCT) provided by Microsoft. It offers a graphical interface to select your deployment settings, languages, and update channels, and then exports the exact configuration.xml file you need.

Does the Office Deployment Tool require internet access at any point?

Yes, the initial workstation or server running the '/download' command requires internet access to fetch the Microsoft 365 installation files. However, the subsequent installations on client PCs using the '/configure' command can be performed completely offline.

Installation & Activation