: The most secure way is to buy or renew a license via the ESET Official Store .
: Downloading "activators" or "cracks" from unofficial websites can expose your computer to malware.
: Version 5 is significantly outdated. ESET has largely moved to a subscription model (e.g., ESET HOME Security) and has suspended operations in Russia and Belarus as of March 2022.
: If you already have a license but lost the details, you can manage it through the my.eset.com portal.