Once you have the legitimate transmutr license key link, here is how to use it:
Pro Tip: Transmutr licenses are Node-locked to 2 machines. If you get a new computer, you must "Deactivate" the old one via the dashboard before clicking the license key link on the new PC. transmutr license key link
Searching for this phrase leads to:
If neither works, email support@transmutr.com. Provide your PayPal transaction ID or the last 4 digits of your credit card. They typically respond within 24 hours. Once you have the legitimate transmutr license key