Our installers are not viruses, but some AntiVirus software (Windows Defender, Norton AV, McAfee, Bitlocker etc.) sometimes produce false positive because of their probabilistic detection algorithms and the fact that we're using a very common library to create our installers. We regularly check our installers with VirusTotal.com too and there are never more than 1 or 2 AV producing a false positive. If that happens to you, please report this as a false positive to your AV software vendor ! You can disable the AV for the installation process, then re-enable it.