Do I Need an Internet Connection to Use Microsoft 365?
In general, yes, you need an Internet connection to use Microsoft 365 to its full potential. However, many features are available offline, especially when using the desktop apps installed on your device.
Whether you need to be online depends on which tools and services you're using.
When an Internet connection is required
- Outlook – To send and receive emails via Exchange Online
- OneDrive and SharePoint – For syncing files and folders
- Teams – For chat, meetings, and calls
- Copilot – All cloud-powered and AI-based features
- Updates – To keep Office apps up to date
- License verification – Microsoft checks your license periodically online
When you can work offline
The desktop versions of Microsoft 365 apps such as Word, Excel, PowerPoint, and Outlook can be used without an Internet connection.
For example, you can:
- Create, edit, and save documents locally
- Work for days without being connected
Once you're back online, the following will happen automatically:
- Files will sync with OneDrive or SharePoint
- Outlook will send and receive pending messages
- Your Microsoft 365 license will be updated or revalidated
⛔ Features Not Available Offline
- Copilot and other cloud-based tools (e.g., Microsoft 365 search, charts with online data, translation services)
- Teams chat, meetings, and calls
- File synchronization with OneDrive and SharePoint
