Here’s the breakdown:

ESET NOD32 is compatible with various operating systems, including:

While sites like Pefelie provided easy access to keys, ESET warns that using pirated or shared licenses from unofficial third-party websites can be risky:

: "Free ESET license" ads or unofficial downloads can sometimes be a front for malware themselves.

The software requires a minimum of 256 MB RAM and 300 MB of free disk space.