- Compatible with:
- macOS
- Available in:
- Desktop Security version 5
Error Message
License key inactive. There's an issue with your license key. Please visit the Support page.
Error Code
MB403100
What caused the error message
You tried using your license key to activate your subscription on your macOS device. However, activation failed as your license key is inactive. A license key can become inactive when your subscription has expired or you have activated the maximum number of devices in your subscription.
How to resolve the error
To activate your subscription on your macOS device, you may need to purchase a new subscription or upgrade your subscription to include more devices. After you have an updated subscription, review our Activate your subscription for Desktop Security article for help activating your macOS device.
- To purchase a new subscription, see our Pricing page for current plans and offers.
- To upgrade your subscription to include more devices, check out our Add devices or upgrade your subscription.