LittleDog, are you using the "cloud" for backup? I ran into a similar problem with a phone, where we would delete a phone number, and a few minutes later it was back! Now I do not use the "cloud" to backup, so I am not sure how you would stop this action on your PC. There might be a button to suspend backup.
One other item, my previous Cannon printer actually had 4 separate pieces of software in the programs list, to completely remove the printer, I had to remove all 4, this was because it was a multifunction device, and apparently each function had its own set of drivers.
Hope this helps.
Pennsylvania, for 60+ years, most recently, Allentown, now TV.