: Configure other ESET installations on the network to use the IP address of that mirror (e.g., http://192.168.1.10:2221 ) as their custom update server. 3. Full Offline Installer

If you are managing an enterprise deployment, look into the official , which automates the downloading of these repositories directly to your local servers, saving your IT administration team valuable time and ensuring continuous peace of mind.

: This is the primary method for professional and business environments. You run the Mirror Tool on a computer with internet access to download the latest modules. These files can then be transferred via a USB drive to the offline machine.

If the target computer is completely air-gapped (no network connection whatsoever), you can manually download the official ESET offline update packages using a separate, internet-connected computer. These files are zipped modules containing the latest virus signature databases. You simply transfer these files to a USB flash drive, plug it into the offline machine, and point the ESET software to the USB directory.

A valid ESET business license (the Mirror Tool requires business credentials or an offline license file).

: Enable the Enable HTTP Server feature in the Advanced Setup of the "connected" machine to share its update folder over the local network.

Expand and toggle the switch to enable Create update mirror .

Aim to download and transfer new offline packages at least once a week. Cyber threats evolve daily.

Small office environments with a mix of connected and isolated machines. 3. Legacy ZIP Packages (Limited Availability)

Microsoft Visual C++ 2022 Redistributable x64 deployed on the compilation workstation.

Standard installations download virus definitions directly from the internet. Alternatively, configuring an offline repository offers distinct advantages for specific network setups:

By default, ESET looks for online servers to fetch databases. You must redirect it to your local folder. Open the main program window.

If managing multiple machines, use the official ESET Mirror Tool on your connected PC to automatically schedule and pull down the latest definition files.