[John Rogers]

well Scott you are lucky to have a "computerized" wife but when you start to worry about security it can become a tremendous headache! Since you have banking, business apps AND Pelican on a PC if it were me, I would go like this:

1. I didn't see anything about backups so first I would buy at least 2x 8TB hard drives and set them to backup once or twice a week. Amazon sells a very good external drive enclosure.
2. I imagine your internet service comes into a password protected box of sorts so if you don't have your own router....buy one then set it so only your computers, phones and flat screens+Roku boxes have their MAC addresses allowed in. Also change PW every 6 weeks or so.
3. I would buy a 3rd computer to use as a TEST machine such as image your wife's PC and try running her apps after an upgrade to Win11. You can run them in compatibility mode to see if the work. This can be a low price laptop you but at Amazon or Walmart on black Friday.
4. Check to see if you BOTH are logged in as administrators on any computer you use and if not change that ASAP.
5. If you don't have a battery backup for your PC/router/ETC I would suggest getting one. Again, Amazon has them fairly cheap especially on black friday.

Granted this costs some $$$$ but the router will be good for several years and the computer and drives will pay for themselves if another computer fails.

John Rogers the oldracer