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| Situation | Recommended action | |-----------|--------------------| | (purchased a new copy, email missing) | Look for the original purchase receipt in your email (search for “MacDrive” or “Mediafour”). The serial key is normally a 25‑character alphanumeric string. | | You lost the receipt | Contact Mediafour Support with proof of purchase (order number, payment method). They can re‑issue the key. | | The registry entry is missing (e.g., after a clean reinstall) | Re‑install MacDrive 10 using your original installer, then enter the serial number you already have. If you don’t have it, follow the “lost key” path above. | | You’re moving to a new PC | De‑activate the old installation (MacDrive → Help → Deactivate ), then install on the new machine and enter the same serial number. |
By following the tips and guidelines outlined in this article, you should be able to find and use your MacDrive 10 serial number with ease. If you're still experiencing issues, don't hesitate to contact Paragon Software support for assistance.
Log in to the OWC Software Store customer account, go to "Show Previous Orders" > "Order Details" .



