is a commercial, paid endpoint security and management solution. There is no legal, free full version available for business use.
If you're looking for a completely free alternative for business use, you could explore (included with some Microsoft 365 plans) or open-source tools like ClamAV (limited management features). eset protect complete download free
I notice you're asking about downloading for free. I should clarify a few important points: is a commercial, paid endpoint security and management