If a premium ESET subscription isn't in your budget right now, there are safer paths than using cracked keys:

While it is understandable to look for ways to save on software costs, using "free" license keys for premium antivirus programs like ESET Smart Security Premium is a risky practice that often leads to more harm than good.

Legitimate users have access to ESET’s expert support. If you use a pirated key and your system is compromised, you are on your own. Safe and Legal Ways to Use ESET for Free