How to Download and Install ESET NOD32 Antivirus (4.x)

Lets Begin For Download And Installing

Important!

Version 5 of ESET Smart Security and ESET NOD32 Antivirus has been released. We highly recommend that you upgrade to the latest version:

• How do I upgrade my Windows ESET Home Edition security product from version 3.x/4.x to version 5.x?
   
• ESET Smart Security 5 and ESET NOD32 Antivirus 5 Home Editions are not suitable for use with ESET server products (e.g., ESET Remote Administrator).

To download and install ESET NOD32 Antivirus, watch the installation video directly below or follow this article's download and installation step-by-step instructions:

To watch a video of the steps below, click here. Please make sure that you have the latest version of Adobe Flash Player.

Important!

Before downloading:

• Check your operating system version
• Have your ESET-issued username and password ready; reference your confirmation email for this information. If you forgot your username or password, visit our Lost License page.

Download ESET NOD32 Antivirus

1. Click the appropriate link below for your operating system for Microsoft® Windows® 7/Vista/Home Server/XP/2000
   
   32-bit Download    64-bit Download
   
   Business Edition users or those installing to a server, click here.
    
2. Select Save when prompted and save the file to the Desktop. 

Important!

Running two antivirus products on the same computer can degrade performance and cause system instability. It is important that any previously installed antivirus software is uninstalled from your system before installing your ESET security product. Please see our list of uninstallers (removal tools) for common antivirus software. 

Install ESET NOD32 Antivirus
To install ESET NOD32 Antivirus, please follow the steps below. If you are running Windows Vista with User Account Control (UAC) turned on, you may be prompted with additional dialog boxes not shown in the steps below. If prompted, please confirm that you wish to install ESET NOD32 Antivirus, as well as any associated device drivers.

1. To begin your installation, double-click the ESET NOD32 Antivirus installer icon or insert the installation disk. If you are prompted by Windows to open the file, click Open. If you have an installation CD, click Install.
    
2. The ESET NOD32 Antivirus Setup window will appear. Click Next to continue.
   
   
   
   
   Fig. 1-1
   
   
3. In the next window, select I accept the terms in the License Agreement and then click Next to continue.
   
   
   
   
   Fig. 1-2
   
4. The Installation Mode window will appear. Select Typical and click Next to continue. 

   NOTE:

   Selecting Custom install will display additional configuration parameters such as password protection of ESET NOD32 Antivirus settings. If you select Typical (recommended) the additional configuration parameters can be accessed after installation is complete.
   
   
   
   Fig. 1-3
   
   
5. On the next window, enter your ESET-provided Username and Password and click Next to continue. 

   Important!

   Please remember to enter your username and password exactly as they are written.
   -The username and password are case sensitive and the hyphen in the username is necessary
   -The password is ten characters long and all lowercase
   -If you are copying and pasting, make sure you don't select an extra blank space
   -We do not use the letter L in passwords (use the number one (1) instead)
   -A big '0' is the number zero (0), a little 'o' is the lowercase letter o
   
   If you forgot or lost your username and password, visit our lost license page.
   
   
   
   
   
   Fig. 1-4
   
   
6. In the ThreatSense.Net Early Warning System window, select the Enable ThreatSense.Net Early Warning System option and click Next to continue.
   
   
   
   
   Fig. 1-5
   
   
7. In the next window, Detection of potentially unwanted applications, select the Enable detection of potentially unwanted applications option and click Next to continue.
   
   
   
   
   Fig. 1-6
   
   
8. In the next window, Ready to Install, click Install to continue.
   
   
   
   
   Fig. 1-7
   
   
9. Once you click Install, you will see the Installing ESET NOD32 Antivirus window (below) for a few minutes.
   
   
   
   
   Fig. 1-8
   
   
10. When you see the Completing the ESET NOD32 Antivirus Setup Wizard window, click Finish to complete your installation.
    
    
    
    
    Fig. 1-9
    

    NOTE:

    If an error message is displayed during installation and you previously had ESET NOD32 Antivirus installed on your computer, verify that you have uninstalled it completely. Also, delete the C:\Program Files\ESET folder.