I have had the same issue with several recent downloads now kyle9154, after the most recent Windows 10 Update on my Home Edition of the OS. Follow from this post from Jeff-Groves in Xerxes'
3ds Max 7/8/9 thread, and what Jeff then posted, and what I ended up having to do on the next page. Very interesting anymore, that a 7zip file with an executable is "seen" by Windows Defender and assumed to be rogue, because it is in the 7zip archive. Not cool on Microsoft's part to be so paranoid and lazy about it. At least scan the interior and see if it is indeed "bad"... anyway, you do have to jump through hoops when using Windows Defender...