Is there a malware into the Win 64bit version file FreeCAD_0.16.6700.7b925d1-WIN-x64-installer.exe? My download with Chrome has just been stopped twice by Avast antivirus at 39MB out of 224MB.
Windows Defender detected no threats in the installer. Windows defender detects between 85-91 percent of 0-day threats, while other vendors might detect up to 100 percent of 0-days, according to the latest report from av-test.org.