I tried the Asobo to MS Achievement, my first long flight. Sadly, the game crashed 25 miles before I landed

remember a thing : on recent Windows versions, virtual mem is dynamic, unless you change settings (that I wouldn’t do). And to be able to work, it is doubled in some sort (safe sectors) to avoid corruption : if you have 32Gb installed RAM, you will have something up to 32Gb memfile (it can go higher if needed automaticly), which will use at least 64Gb of room on your SSD. IF you do not have the free place available, you can have corruptions on the pagination file.