Download ESET Mirror Tool from ESET’s website. Run it on an internet-connected PC to download the latest signature database. Copy the generated mirror folder to your offline PC.
This is the most critical section of this article. While the keyword suggests Facebook is a legitimate source, cybersecurity experts warn against it. eset nod32 offline update facebook top
Without offline updates, an unplugged PC running NOD32 is essentially defenseless against new malware. Download ESET Mirror Tool from ESET’s website