: If you must activate ESET products on computers that never connect to the internet, generate an offline license file ( .lf ) through ESET Business Account. Offline files are the most reliable way to activate air‑gapped systems and completely bypass the need for either a License Key or a username/password.
If you have an older version (like Version 9) still installed, you can often convert within the interface: Open your ESET product and go to . Select Change License or Activate Product .
Go to the ESET Business Account License converter page. The official URL is: https://eba.eset.com/LicenseConverter .
Enter your legacy credentials and click to generate your new 20-character License Key. Eset Convert License Key To Username And Password
Copy the Username and Password immediately and store them in a secure location (e.g., a password manager or encrypted file).
Treat them like your License Key. Do not share publicly. If needed for an admin console, use secure channels.
Because of this architectural change, users cannot convert a modern License Key back into a Username and Password . Instead, you must do the exact opposite: . Why ESET Migrated to License Keys : If you must activate ESET products on
The system will display the modern License Key, which can then be used to activate the product. Converting Old Username/Password to a New License Key
Ensure you are not mixing up the characters. Copy-pasting the key directly from your confirmation email is recommended to avoid typos. Does ESET still support Username and Password?
Open your ESET product and navigate to > Change License . Select I have a Username and Password, what do I do? . Select Change License or Activate Product
Click . The system will generate your new License Key .
To grasp the conversion process, it helps to understand the three primary ways an ESET license is represented: