When installing windows:
Press Shift+F10
Type diskpart
list disk
for every disk on the list that isn't the disk you want to boot from and the usb stick you're installing from, type:
sel # (where # is the disk number in the list)
offline disk
Then just install Windows normally.
When you're in windows, press Start E
Right click This PC, click Properties
Go to system properties
Click Performance > Advanced
Page File
Set to manually adjusted
Set an amount equivalent to half your RAM capacity on the boot drive, make sure it's disabled on all other drives.
This should prevent Windows from using your other disk for anything critical.
Yes it does. There are many ways Windows will automatically try to use your other disk for system stuff.
- If the disk you install Windows to is already fully formatted, but there is another drive which has unformatted space, Windows will put the UEFI and recovery partitions onto the other drive.
- If your boot disk does not have at least 50% of your RAM size as free space when you boot into a default Windows configuration, but you have another disk which does, Windows will put the Page File onto the other disk.