Not one has called back with a problem. A few were true computer neophytes — deathly afraid of leaving windows.
In both cases, the dual boot was too much. I expect to switch it on and it works. And works with pretty much any software I can get. I suppose if I had an internet only machine with rudimentary word processing needs I might consider linux. Actually, I’ve got two computers collecting dust. I should try it again with one of them.
None of them have special software needs. They mostly surf the web, do email and use open office. I like not having to be bugged to clean infected systems....