Personally, I also found the term 'Installation drive' confusing and had to double-check when I first saw those words.
MS refer to the volume containing the boot manager files as the 'system' drive and the volume containing the Windows OS files as the 'boot' drive - which is also really confusing (even the MS techs agree it is confusing!).
I think it would be clearer to say
'Select partition for boot files'
'Select partition for Windows files'
F1 help text could contain some text about 'The boot files and Windows files can both be placed on the same partition'
I don't know if it is possible, but when a drive letter is chosen and selected by the user, can the field say something like 'C: (disk0, partition 1)' instead of just C: - this would be helpful on multi-drive systems.
Maybe the dangerous part is most of the mormal users don't know how to use the diskpart (I often use PartAssist to change the partitions)
WinNTSetup v5.3.4
in Install Windows from USB
Posted
Maybe the dangerous part is most of the mormal users don't know how to use the diskpart (I often use PartAssist to change the partitions)