Basically when I selected Macrium to boot my computer upon restarting it, it just got stuck indefinitely on the black screen with the four white squares and I had to force-shut it again (it took two attempts as the computer was unresponsive at first), so it was kinda scary.
I've also tried Aomei Backupper but all those third-party apps seem to do the same thing: create a single file (with a different extension), that I cannot use to either view what it contains or to reboot my computer. There is something that is conceptually different from the simple clone that you can create natively on mac os, and like so many things on Windows, I fundamentally don't understand how to make it work.
I think the only option I have is to buy a new drive of the same brand as the one I already have and that Backup recognizes. By the time Windows stops supporting it, hopefully I'll have switched back to mac and live a happier life free from the endless stream of problems that plague Windows.