- Compatible with:
- Windows
- Available in:
- Desktop Security version 5
Error Message
This license key has been refunded.
Error Code
MB403105
What caused the error message
Before you tried activating your Windows device subscription, you asked for a refund and received it. Because your subscription was canceled and refunded, you can no longer activate it using the license key.
How to resolve the error
To use the app's advanced features on your Windows device, you will need to purchase a new subscription. Check out our pricing page to see available plans. Then follow the steps in our Activate your subscription for Desktop Security article.