In many corporate environments, especially those dealing with sensitive information, servers and workstations are intentionally isolated from the internet to prevent data breaches. This also blocks automatic antivirus updates. The offline update package allows these computers to receive critical definition updates manually, ensuring continuous protection.
If you have a computer or server that is "air-gapped" (not connected to the internet), you can still keep your ESET security products up to date using the offline update 📥 What you need:
Network share path: \\LocalServer\Updates\ (if updating via a restricted local LAN). Offline Update Eav.zip
If you have multiple machines without internet but a central server with partial access, you can create a mirror.
Modern ESET products have also evolved. Many now include built-in support for “Mirror” servers—a local repository on a network that one machine populates online, and others consume offline. This hybrid approach reduces the need for individual .zip files while retaining offline capabilities. Nonetheless, for standalone PCs, legacy systems, or emergency scenarios, the humble “Offline Update Eav.zip” persists as a reliable fallback. If you have a computer or server that
Unzip the contents into a dedicated "Mirror" folder on your offline machine (e.g., C:\ESET_Updates\ Configure ESET: Open your ESET product and press Advanced Setup Navigate to Update Mirror Create update mirror
For modern versions like , the manual zip method is largely replaced by: Common Use Cases
Open ESET, press F5 for Advanced Setup, and navigate to Update .
Download the latest offline update package (e.g., eav.zip or the vendor-specific equivalent).
Usually compatible with ESET NOD32 Antivirus, ESET Smart Security, and ESET Endpoint versions. Common Use Cases