uncertainty
I'm not sure if this is a pun or whether you have been led to believe that the word testament is derived from the action you state? The additional biblical meaning coming from a confusion of the two meanings of Greek diatheke, which meant both "covenant, dispensation" and "will, testament".
It starts to grind you down when you're dealing with multiple users per PC and unmanaged PCs from a bunch of different sources. Propagating start menu changes to all profiles post install is a hassle in 10 & 11. Sysprep is a lot less useful for setting up the defaults pre install now. The out of the box install process is smoother these days without as much waiting to click through various stages but the post install environment reduces your quality of life with a bunch of clicky fiddling.
From the days of DOS till today Windows 2000 is definitely my favorite, the most cohesive, straightforward and consistent experience. For now I just hope software will keep supporting LTSC through till the end of support.
If you can get people to leave the pile alone long enough, composting is safe and yields a useful end product https://humanurehandbook.com/
To the commenters justifying the written form MM-DD-YYYY on the basis of preferring to say the name of the month followed by the day (which the written numerical sequence does not preclude you from doing). If someone were to say something like "the time is a quarter to eleven" do you think they would have a case for writing it 45:10? And if so, how would you deal with the ambiguity of "ten past ten" if they wrote it 10:10 instead of 10:10?
https://www.wordorigins.org/big-list-entries/testify