I use WD disk image to make a complete image of my disk to another of the same size (I don't have a dual boot on either of the drives.) Both drives are mounted and run in the machine all the time so I suppose I run the risk of both drives becoming corrupted.
I do this in case the main (C
drive becomes very corrupted (happened in the past due to offspring messing and downloading inappropriate software)
Having got fed up with re-formatting etc I can now re-boot from the image of the copied drive (copied when it was working normally). I then ensure I have collected any important files from the corrupted drive and run a disk image back the other way. This has saved me many hours of tedious re-formatting etc over the last 3 or 4 years.
I also back up all important files to 3 separate external drives every couple of months.
Hope you are well.
Kind regards
Exeng