This will uninstall the antivirus from your computer and now you can install your desired antivirus again.
Follow the steps to uninstall the other antivirus: Two antivirus applications don’t function fine mutually, so you should uninstall the other antivirus app before you try to install the new one. If you can’t install antivirus on Windows 10, then it is because that you have any other security tool installed on your Windows 10 system.