1. Uninstall any previously installed antivirus software on your system.
   
   
2. Download the ESET NOD32 Antivirus installer file, and then double-click the installer file to begin the installation.
   

   CD

   If you have a CD, insert it into your computer (if the installation does not begin automatically, click Start → Computer and double-click the ESET disc icon).

3. In the Install ESET Security window, click Continue.

4. Review the End-user license agreement and click I Accept to continue.

5. In the Choose an activation option window, click Use a purchased License Key. If you are updating from a previous version, your license information will be entered automatically.

If you do not have a License Key or did not receive an email with license information following your purchase, visit the Existing Customers page for support.

6. In the Use a purchased License Key field, type or copy/paste your License Key and click Continue. Make sure you enter the License Key exactly as it appears and include the hyphens. If you copy/paste, be sure you do not accidentally select additional space around the text. If you have a CD, type your Activation Key (printed on the label) in the blank field. Be sure to include the hyphens.

7. Click Continue.

8. Select your preference for ESET Live Grid and Detection of Potentially Unwanted Applications. Click Continue.

9. Select your preference for the Customer Experience Improvement Program (CEIP) and click Continue. You can change your CEIP settings after installation. 

10. Click Done to exit the Installation Wizard.