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- Log in to Outlook Web App (OWA) on your Windows 7, Windows 8, or Mac computer.
- Click on the gear icon in the right corner.
- Scroll down and select Office 365 Settings.
- Click on Install and manage software.
Click the appropriate Deactivate link to deactivate the license for the specified computer.
Note Deactivation does not actually uninstall Office from a computer. Office is still installed on the computer, but the Office applications are placed in reduced functionality mode.
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