In the past, ESET used a system to activate products. However, they have transitioned to using a License Key (a 20-character string) for a more streamlined experience. If you have an older product or a specific legacy need, here is how the conversion works. Understanding the Transition

Versions 6 and older only accept Username/Password. You must convert first.

ESET has transitioned from legacy credentials to a standardized License Key format (XXXX-XXXX-XXXX-XXXX-XXXX).

to have your subscription details resent to your registered email. : Your License Key is different from your