[donatj]

Contrary to the other commenters rose colored glasses, as someone who ran OS9 at the time, it was indeed very unstable.

The entire MacOS classic line of OS’s were horrible for stability. Any small bug in any program could knock out the entire OS, and they did multiple times a day. Don’t get me wrong, the love put into the OS was palpable. That’s why you used it. It just crashed all day every day.

[wsc981]

I didn’t have this experience, but perhaps because I mainly played games at the time. Maybe the type of games I played just crashed the system less than -say- productivity software.

[anthk]

In my W98SE experience, by installing drivers and using some multimedia software (or libraries) would crash it often.