Question about dual booting.

[ilcaccillo]

Alright so I got Windows all up and running on my SSD. So technically if I install my MacOS on my HDD it shouldn’t mess with any of the Windows content on the SSD?

I think the advice given was for you to disconnect (take the cable off) of the Windows drive when you install MacOs on the other drive, or vice-versa.

Also when I get everything up and running, am I able to partition my HDD and use half of it as storage for stuff downloaded on the windows side? Or should I keep them both completely separate?

I don't think you will have any problems with that.
The problem seems to be during the installations or during Windows or MacOs updates