ESET Knowledgebase

Solution

1. Download
    
2. Uninstall your existing ESET security product
    
3. Reinstall
    
4. Troubleshooting
    

I. Download

1. Download your ESET product using one of the links below. You will need your unique username and password to download your ESET product. Be sure to check your operating system version before downloading.

32-bit:

ESET Smart Security 4.x    ESET NOD32 Antivirus 4.x 

64-bit:

ESET Smart Security 4.x    ESET NOD32 Antivirus 4.x

2. When prompted, click Save and save the file to your Desktop. 

II. Uninstall your existing ESET product

VIDEO: How do I uninstall ESET Smart Security or ESET NOD32 Antivirus? (4.x)  

1. Click Start All Programs ESET Uninstall. After you uninstall, you will need to restart your computer.

2. After restarting, confirm that you can see hidden files and folders by clicking Start Control Panel Folder Options View and select the Show hidden files and folders option.

3. Click Start My Computer and then navigate to and delete the following folders:
   
   C:\Program Files\ESET
C:\Documents and Settings\All Users\Application Data\ESET
C:\Documents and Settings\%USER%\Application Data\ESET

   
   

   Windows Vista and Windows 7 Users must delete the following folders:

   
   

   C:\Program Files\ESET
   C:\ProgramData\ESET

III. Reinstall

1. Navigate to your Desktop or wherever you saved the installation package file and double-click it to open.


2. Follow the instructions in the ESET Installation Wizard to install your ESET product. For more detailed installation instructions, please click here for ESET Smart Security 4.x or click here for ESET NOD32 Antivirus 4.x.
    

IV. Troubleshooting

• I can't uninstall or reinstall my product Complete a manual uninstallation


• I lost my username and/or password Visit the Lost License page
   
• My username or password is not working Troubleshoot username and password issues
   
• I can't download my ESET product Complete the solution checklist