MirrorTool.exe --mirrorType regular --intermediateUpdateDirectory "C:\temp" --outputDirectory "C:\eset_updates" --offlineLicenseFilename "license.lf" Transfer Files : Copy the outputDirectory folder to a USB drive and move it to the offline machine. Configure the Offline Client Open ESET NOD32 and press (Advanced Setup). Choose automatically and set the Custom server path to the folder on your local drive (e.g., file:///C:/eset_updates/ ESET Security Forum 2. ESET Bridge (Caching Proxy)
This guide provides the ultimate walkthrough for utilizing to keep isolated systems fully protected. Why Use ESET NOD32 Offline Updates?
: A USB flash drive or external hard drive with at least 2–4 GB of free space, formatted in NTFS or FAT32.
ESET NOD32 Antivirus: New Offline Update Strategies for 2026 eset nod32 antivirus offline updates new
ESET NOD32 Antivirus offline updates provide a convenient and secure way to keep your device protected against online threats, even without an active internet connection. By following the steps outlined in this guide, you can easily perform offline updates and ensure your device remains secure. Remember to regularly update your ESET NOD32 Antivirus software to stay protected against the latest threats.
Official offline updates via "update folders" or mirrors are no longer supported for home products. ESET requires an active internet connection for both product activation and module updates to ensure the latest AI-powered signatures are applied.
: Once the download completes, copy the entire C:\ESET_Updates folder to a USB drive. Phase 2: Configure the Offline PC (NOD32 Antivirus) MirrorTool
If you need to install the software itself without a connection, ESET provides standalone .exe installers.
This ensures your isolated systems stay protected without an internet connection.
: Open ESET NOD32 and press F5 on your keyboard. ESET Bridge (Caching Proxy) This guide provides the
The downloaded files inside your mirror folder are older than the ones on the device.
ESET NOD32 Antivirus offline updates are a specialized feature that allows users to update the threat signature database and program modules without a direct connection to the ESET update servers. Instead of downloading updates directly to the endpoint, you download them on an internet-connected machine, transfer them via a USB drive or local network, and apply them locally. Why Do You Need Offline Updates?
另一种常见的手动离线更新方法是通过配置本地文件夹作为更新服务器：
Since ESET has transitioned to its "Version 10+" ecosystem (and the recent Version 18 release), the landscape for offline updates has changed significantly. The old method of simply downloading a .nup file or a zip folder has largely been replaced by the .
Malware can easily hop onto USB drives. Never use your update USB drive on unverified, unprotected third-party machines. Keep the drive dedicated solely to downloading and transferring ESET updates. Troubleshooting Common Issues