automatic back ups when hard drive plugged in
I'm wondering if there's a way in Windows 10 to setup an external backup drive to detect any changes to files on my machine to be backed up as soon as it's plugged in. To explain this in point form, I'd like to:
1) plug in my back up drive.
2) The drive (or some utility) automatically scans key files and folders to check for changes (added, modified, or deleted files).
3) Any changes it detects get backed up.
In step 2), when I say "key" files, I mean only files I want backed up, not everything on my machine.
Do I need a special kind of hard drive for this?
Is there an online guide on how to set this up?