[tyingq]

Started with some open questions about the most frustrating things about the computers/apps, then leading into "show me, on this PC", so I could see which of those complaints I could do anything about.

Then a tally at the end to see what was practical to fix, commonly disliked experiences across users, etc.

The one thing I'd do different is ask for maybe 2 rounds of interviews, or longer interviews with 2-3 people to start with. The later interviews I did better, since I understood base concepts better. So I probably missed good info from the people I talked to earliest.