Gen IV broken? (windows64bit)

[AnrDaemon]

Yes, that is normal. If you want a somewhat complete list, here:
https://www.microsoft.com/en-us/download...x?id=26347 VS2005
https://www.microsoft.com/en-us/download...x?id=26368 VS2008
https://www.microsoft.com/en-us/download...x?id=26999 VS2010
http://www.microsoft.com/en-US/download/...x?id=30679 VS2012
http://www.microsoft.com/en-us/download/...x?id=40784 VS2013
https://www.microsoft.com/en-us/download...x?id=48145 VS2015
https://go.microsoft.com/fwlink/?LinkId=746571 VS2017/32
https://go.microsoft.com/fwlink/?LinkId=746572 VS2017/64

Can I safely remove all the other ones and JUST install the most recent (2017) one?  Do they cover the previous updates etc?

They are separate library packages. Not interchangeable.