- Compatible with:
- macOS
- Available in:
- Desktop Security version 5
Error Message
License issue. This license key was already used to activate the maximum seats available.
Error Code
MB403104
What caused the error message
You tried activating your subscription using a license key. However, when you tried to activate your subscription on your macOS device, you had already activated all the allowed devices.
How to resolve the error
To activate your subscription on your macOS device, you need to either deactivate your subscription on another device or upgrade your subscription to include more devices. Then, review our Activate your subscription for Desktop Security article for help activating your Windows device.
- To deactivate your subscription on another device, follow the steps in our Deactivate device from your subscription article.
- To upgrade your subscription to include more seats, check out our Add devices or upgrade your subscription.