: If you have an older Username and Password instead of a 20-character License Key, ESET provides a conversion tool within the activation window to generate the modern key format. AI responses may include mistakes. Learn more License Management | ESET PROTECT On-Prem 12.1
To check your ESET license key or subscription status, you can use the software interface on your device or the online management portal. Your license key is a unique 20-character string in the format XXXX-XXXX-XXXX-XXXX-XXXX Method 1: Check via the ESET Software eset check license key