How to Update NOD32

Method 1 of 2:

Launch the ESET NOD32 Antivirus program on your Windows computer.
Click on 'Update' within the left toolbar on NOD32.
Click on 'Check for updates.' The program will search for any available updates.
Click on 'Install' below the field labeled 'Product update.' Your Windows computer will automatically download and install the latest updates.
Wait to receive the notification that informs you that the program modules have been updated.
Restart your computer. When your computer restarts, the latest updates will be applied to NOD32.^{[1] X Research source}

Method 2 of 2:

Open the ESET NOD32 Antivirus program on your Linux system.
Click on 'Update' from within the left pane of NOD32.
Look for a message near the bottom of your window that reads, 'A new version of the product is available!'
1. If this message is not displayed, then there are no updates available for NOD32 at this time.
Click on 'Learn more' to the right of the message. A pop-up window will display on-screen prompting you to download the latest updates.
Click on 'Download.' Your computer will download the newest NOD32 updates.
Open the updates file after it has finished downloading to your Linux system.
Follow the instructions displayed in the wizard to apply updates to NOD32.^{[2] X Research source}