The custom installation is designed for users who have experience with fine-tuning programs and who wish to modify advanced settings during installation.

The first step is selection of the installation folder location. By default, the program installs into the folder C:\Program Files\ESET\ESET NOD32 Antivirus\. Click Browse… to change the location.

Next, enter your Username and Password. This step is the same as in the Typical installation.

The following step is the configuration of your Internet connection. If you use a telephone line to connect to the Internet, select the option “I use a dial-up (modem) Internet connection”. Otherwise, leave this option unchecked.

Proxy server
A correctly configured proxy server is important for the program updates to work properly. If you don’t know whether you use a proxy server to connect to the Internet, select I am unsure if my Internet connection uses a proxy server. Use the same settings as Internet Explorer (Recommended). If you do not use a proxy server, check the corresponding option.

, select I use a proxy server, if you use one. If you have selected the last option, then configure your proxy server settings in the next window. Enter the IP address or URL of your proxy server into Address. Port allows you to specify the port where the proxy server accepts connections (3128 by default). In the event that the proxy server requires authentication, a valid username and password must be entered, granting access to the proxy server. Proxy server settings can also be copied from Internet Explorer if desired. To do this, click Apply and confirm the selection.

Proceed to the next step, configuration of the ESET NOD32 Antivirus automatic program component update. This is essentially a program upgrade. Click Change to access the advanced settings. If you do not want program components to be updated, select Never update program components. The option Ask before downloading program components displays a confirmation window for downloading program components. To activate automatic program component upgrade, select the option Perform program component upgrade if available.

The next step of the installation is entering a password to protect program parameters. Choose a password you wish to protect the program with. Retype the password to confirm it, which prevents potential mistakes.

The steps Configuration of the ThreatSense.Net Early Warning System and detection of potentially unwanted applications are the same as for the Typical installation.

The last step shows a window requiring your consent to install.