While the questions that follow aren't Windows 10 specific, since I would be doing them under Windows 10, and the exact technique used may differ from earlier versions of Windows I am going to ask about it here.
I have a machine with a failing hard disc and believe I am going to purchase a new laptop to replace it. My current HDD is 500 GB but the new machine would be at least 1 TB, and possibly 2 TB.
It seems to me that, even though the machine has one single physical drive, that it would make a lot of sense to isolate the C: drive to containing the Windows OS and installed programs only and creating a separate partition (or, perhaps, more than one) where user data would be stored. But perhaps that does not make sense.
Questions 1 & 2: Does it make sense to "cordon off" Windows 10 on its own on the C:\ drive (partition)?
If yes, approximately what size should that partition be?
Questions 3 & 4: If User Data is split off into it's own logical drive, which of the following techniques is the best for doing this? [Or is there another that's better?] I would probably not do a clean install of Windows 10 on the new machine unless that is actually the best and easiest way to accomplish this. I know that a clean install would go a long way toward eliminating any bloatware, so it may be appealing for that reason alone.
Question 5: Would it make any sense at all to split off the Public folders/libraries into their own logical drive?
If I end up having 2 TB to play with having three logical drives that are still "huge" wouldn't be difficult at all.