Knowing that a good backup system is crucial to dealing with ransomware, I've decided to go beyond backing up with FileHistory on external drives and get some cloud backup and also disk imaging to go along with local backups.
My understanding of disk imaging is that it is like a snapshot of ALL your software and operating system, as they were at a point in time. And this allows you to restore your corrupted, malware-infested software with clean copies of all of it, possibly weeks or months old, without also losing all your data from the previous weeks or months (yes, those files are now encrypted, but you should also have multiple backups of these files, only, which you can restore). This was what a company I used to work at did if you got malware on your PC - they just reformatted with an image (and all data was kept on servers, so you only lost data if you'd broken the rules and stored it to your C drive).
So I downloaded Acronis True Image, which is highly recommended here, and it has no option to do that. The Acronis I tried to chat with didn't even understand what I was talking about. Thought I wanted Acronis to block the virus, and started telling me there's this invention called an anti-virus, like I don't already know that. And he said Acronis defines imaging as "backing up."
Huh? Am I misunderstanding what "imaging" is? What product do I need for what I'm trying to do?
Acronis TM seems to make a nice, Time Machine style backup, which is great since the only backup I've ever had that worked was Time Machine (back when I used Mac). And I suspect that if I did have to go back two weeks to "Restore PC" (all software and data) to get rid of malware, I could then go to a more recent backup of my data to find the latest unencrypted versions of those files. But the Acronis employee's answer was, "Acronis cannot protect your PC from virus. You need antivirus scan." Sigh.