He wasn't looking for a corporate presentation or a modern app. He was looking for The Crystal Grove , a glitchy, hand-drawn browser game his father had coded before he passed away. It was a world of glowing pixels and 8-bit melodies that only lived within a .swf file, now a dormant ghost trapped by the death of the software that powered it.
If you still have an old version of Flash on your Windows 10 PC, you should remove it: Open > Apps . Search for "Adobe Flash Player." Select Uninstall . Adobe Flash Player Download For Windows 10 64-bit