You can install ESET NOD32 Antivirus by following these simple steps:
1. Uninstall any antivirus software that was previously installed on your system.
2. Download the ESET NOD32 Antivirus installer file here.
3. Double-click the installer file to start the installation and follow the instructions on the screen.
4. Activate your protection by logging in or creating your ESET HOME account, or by entering your unique license key.
More details on product installation and activation can be found here
Can I try ESET NOD32 Antivirus before buying?
Yes, a free 30-day trial of ESET NOD32 Antivirus can be downloaded here.