How to uninstall existing antivirus software

Malware and antivirus software

How do I uninstall or reinstall ESET Smart Security/ESET NOD32 Antivirus?


  • Uninstall and reinstall your ESET product to resolve an issue you are experiencing
  • Upgrade ESET Smart Security/NOD32 Antivirus to the latest version

 If you use Windows 10, click for instructions

 If you use Windows 8, click for instructions

If you use Mac, click for instructions

 If you use Android, click for instructions



  1. Download the latest version
  2. Uninstall your existing ESET product
  3. Reinstall
  4. Troubleshooting


I. Download the latest version of your ESET product

North American Customers



Customers outside of North America



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

II. Uninstall your existing ESET product

  1. Click Start → All Programs → ESET → Uninstall.

  2. After completing the uninstallation, restart your computer. If you receive an error during the uninstall process, use the ESET Uninstaller tool to complete uninstallation and then continue to section III below.

III. Reinstall

  1. Navigate to your Desktop or wherever you saved the installation package file and double-click it to open ESET Live Installer.
  2. Follow the on-screen instructions to install and activate your ESET product, or see one of the following Knowledgebase articles:

IV. Troubleshooting

  1. If installation is not successful after performing the steps in parts I, II and III, run the ESET Uninstaller tool and then attempt to install again.
  2. Contact ESET Customer Care if you still cannot install your ESET product.


ESET has over 25 years' experience of helping people to Enjoy Safer Technology. Our software is light on hardware, but hard on malware.

Our Technology

ESET’s award-winning NOD32® Antivirus technology is at the cutting edge of digital security. It’s updated daily to keep you secure.

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