OK, I’ve got to know the name of this supposed program that somehow doesn’t work just because you installed windows10.
I use an old copy of Paint Shop Pro from 1999, that I run from a thumb drive and a strategy game I’ve been carting between computers since Windows 98 and both work completely fine.
If this is some win32 program it seriously isn’t actually telling you it isn’t working.
Plex media server/client. We don’t have TV/Cable. 100% of our television and movies are streamed over internet.
Under windows 7 the client was a regular program. Windows 10 it is an app, and like android/iphone apps it requires subscription to play media files on our server because it thinks it’s a mobile device on my wife’s notebook.
This isn’t actually the fault of Microsoft, it’s the fault of Plex, but either way Windows 10 won’t work. There were a few other minor things.
It was sort of the same when Vista first came out, a bunch of Windows XP software we had wouldn’t run/install. Had to wait for software updates or Vista updates before we could upgrade.