Now, moving on to EaseUS Todo.
All attempts at cloning, whether using Macrium or EaseUS from my hard drive that's in the slow (obviously, I'm still typing to you from that laptop) process of failing have not worked.
The good news is that I took a full system image backup using EaseUS Todo at the end of October and it was able to do another incremental backup overnight last night that succeeded.
I have not used EaseUS Todo for recovery yet. I have what will probably be a very basic question, but I thought I'd ask before even trying it: Is it possible to recover on to a drive that is connected as an external drive to the computer? I would hope so, but really don't know for sure. I'd rather do the recovery that way followed by the "drive transplant" if possible.
As an aside, if one is attempting to do a clone with EaseUS must the target drive be one huge block of unallocated space? The clone process kept telling me there was not sufficient unallocated space, but I had over 900 GB of unallocated space (just not at the very start of the drive) on the target for a 500 GB source drive.