mixture, are you aware that flash update brings down McAfee Security Scan with it? I didn't see any option, it just downloaded and installed itself.
It doesn't on a Mac
It also doesn't if you've signed a Distribution License Agreement and have access to different binaries.
But for everyone else who doesn't have a Mac or is stuck with the standard version of the installer, as MtK pointed out, it
asks you... you just need to look out for the tick box. Instead of going next next next next install.