The most that the ATSB was able to determine was that the data corruption was basically akin to a C++ reinterpret_cast of "altitude" as "angle of attack", causing the 37,000ft or so altitude to sporadically be read as a 50 degree AoA.
The issue was not definitively traced to cosmic rays or another root cause.
The main issue with powershell is its name. It would have been better named powerscript. It’s not really a shell but a much more powerful script language along the lines of Perl or PHP.
Yup, the pause loading HIMEM.SYS was always distinctive. The blur of clicks loading Windows also got faster when switching from the loading screen to the desktop and startup items.
The big box discount store (which demands that customers buy in bulk to save money, and because it is so far away from you that you can ONLY visit it once per month) is as much a product of US style suburban sprawl, as car-dependency is.
