OIT Home > OIT Knowledge Base Search Knowledge Base: How do I manage my Office 365 licenses? You can manage your Office 365 ProPlus subscriptions online through your Volmail account. From the management interface, you'll be able to see how many devices you have installed the software on and deactivate any licenses that are no longer in use. To start: 1. Login to your Volmail (Office365) account. 2. Click the Gear icon for Settings in the right hand corner. 3. Choose Office 365 Settings. 4. Click on Install Status. To deactivate a device, choose "deactivate" under the device that is no longer in use. You are allowed up to 5 active installations. Need more help?