Offline updates allow you to keep your antivirus protected by manually downloading a signature database (usually a .zip or .rar archive) on a connected computer and transferring it via USB to the offline machine.
IT admins can combine Scanwith.com’s files with a batch script: Scanwith.com Nod32 Offline Update
Newer ESET "Home" products (v10+) often restrict manual folder updates. This method works best for older versions (v3–v8) or ESET Endpoint editions. Offline updates allow you to keep your antivirus
to download the latest virus signatures to your selected folder. Update the Offline Computer Transfer the update folder to the offline machine. On the offline machine, go to Advanced Setup (F5) Update server to the path of the folder you just transferred. in the main window to apply the signatures. ESET Knowledgebase Why Avoid Third-Party Sites? to download the latest virus signatures to your