If you want to help teach your anti-virus solution to not report the installer as malware, please tell us which anti-virus solution you’re using.
Alright, I’ve used https://www.gdatasoftware.com/faq/consumer/submit-a-suspicious-file-app-or-url to submit the 64-bit installer as being “incorrectly classified as malicious”. I could not answer which OS version, browser version or G DATA version you were using. We’ll see what comes out of it.