Usually, while installing antivirus software on a Windows computer, the installation might be blocked if the default firewall is turned on. The other cause could be an unstable internet connection when the antivirus software is installed online. Also, if a corrupted version of the antivirus software is downloaded, you might face Norton antivirus not installing issue. If none of the above situations proves to be true and still if the Norton antivirus is not installing on your computer, then check if there is another antivirus software installed on your computer. Also, if you have already installed Norton on your computer, the present installation will fail. To solve the issue, you have to remove the previous version and then install the new antivirus.
Uninstall Third-Party Antivirus Program
- Press the Windows + R keys together to open the RUN dialog box.
- Type in the command appwiz.cpl and then hit Enter.
- The applications installed on your computer will be listed. Select the third-party antivirus program and then click Uninstall or Remove.
- Follow the prompts displayed on the screen.
- After removing the antivirus program, restart your computer.
