The safe source is ESET’s own servers.

To ensure your computer stays secure from malware, always download installation files directly from the developer. Avoid third-party mirrors to prevent downloading bundled bloatware or counterfeit software.

. These installers are useful for installing the software on computers without an active internet connection or to bypass issues with the smaller "Live Installer." Official Offline Installer Links

For users who prefer to install software without an internet connection or those who need to install the software on multiple devices, an offline installer is a convenient option. Here's a direct link to download the ESET Smart Security Premium offline installer:

Some advanced users confuse the product installer with offline virus signature updates . ESET offers separate ZIP files containing the latest signature database (usually 33-50 MB) for computers that cannot connect to the internet at all . These are the product installer.

Using an offline installer for ESET Smart Security Premium offers several benefits:

Always download installers directly from eset.com or download.eset.com . Third-party sites (Softonic, CNET, etc.) often bundle unwanted software or adware with security installers. The links provided in this report point to the official ESET distribution servers.