Before deciding to ask here I really searched the whole Internet without luck and since a long time, but this topic strangely enough seems “taboo”, despite so evident and frustrating. It plagues all versions of Windows since XP and likely earlier versions AFAIK…

When I refer to “jumping scrollbars” (literally: “crazy” scrollbars) I refer to standard system scrollbars, which suddenly jump to their initial position if dragged too much over their final position. This affects every program, from the File Explorer to text editors to audio editors to graphics programs (unless they are using custom GUI toolkits), and affects both horizontal and vertical scrollbars. Anyone can verify this simply with an Explorer window or the Notepad.
I suspect it is a bug and not a “feature”, because this behavior honestly makes no sense, it is very annoying and I don’t think anyone could ever want it at design level. For example, in the past it happened to me to write a scrollbar gadget class, and I simply clamped its position from zero to the useful max as anyone would do, so I really cannot explain this choice other than as an actual bug. But what I judge incredible is that at Microsoft they never realized it and/or never did anything to fix it !!!

So my question: is there any way or trick to fix this bug ? Maybe with some hidden Registry value ? Or maybe there is some third party “hack” or “patch” to fix it ? Keep in mind that this bug is unrelated to the mouse, to the hardware or gfx card used. It affects all Windows setups as far as I can witness.