For me (Well, my grandmother) it was Family Tree Maker. To cut a very long story short - after Windows 10 restarted on her, and changed default browser and app

For me (Well, my grandmother) it was Family Tree Maker. To cut a very long story short - after Windows 10 restarted on her, and changed default browser and application settings too many times she was going to completely give up using the computer. I built a new machine (a Dell AIO workstation) for her with Ubuntu, FTM and a few other things. Worked brilliantly.