Windows 10: How to stop mouse auto scrolling to bottom or top of pages?

Whenever I'm on long pdf documents on webpages, if I scroll a little too fast and take my hand off the touchpad I will skip an endless amount of pages to the very bottom or top - which can make finding your place again very annoying.I don't know what setting this is as all the other questions of this variety seem to have an issue with the mouse - the mouse is not the issue as I am scrolling intentionally, I just don't want to scroll so far. It is also not the number of lines I am scrolling, as it is limitless.

:)

 

Microsoft Arc Touch Mouse is sporadically auto scrolling

Thanks Mara

• When did this problem start to happen?
  
  Since I got the mouse
  

• Can you try using a different mouse to see if it does the same thing?
  
  A USB mouse does not scroll but the wifi arc touch mouse will.
  

• Do you have a different computer that you can test your mouse if its doing the same thing?
  
  I tried the arc touch with a similar Dell and it did not auto scroll as much, just once in about 15 minutes
  

How are you supposed to invoke this auto scroll "feature?" I can't make it happen on my own, it just occurs randomly as I am scrolling through a web page or a Word document,

 

Strange auto scrolling (no it's not the settings/mouse/ scroll hover)

I shot some video of this weird behavior, and then found I couldn't attach it here *Sad since I think most will auto direct me to what this isn't, ie see post title. The scrolling does not affect everything, just login screen, notepad, and the side bar of file manager where the list of items like drives and folders reside. In Notepad for instance when I put the mouse into the document it scrolls to the bottom hence I checked the scroll setting in settings and it's off already. But that is not all. The video is the login screen and the time and date are auto scrolling up in an endless loop until I click a mouse button or hit a key which then brings on the login box which is stationary. Even the settings box auto scrolls down on its own. I try to scroll to the top of the box but it just wants to scroll downward. It's not doing this in everything though. Web pages stay stationary. This just happened today first time I turned my pc on. Anybody else experiencing this or know what is causing this? I have booted then cold booted my pc which changed nothing. Don't know where else to look for why this is happening. Windows 10 Pro Version 21H2 (OS Build 19044.2251) HP Laptop 15

 

mouse scrolling

Running Win 10 and recently auto scrolling on mouse & touchpad started (don't know what I did for that), can't get it to stop. In Control Panel - Mouse (or Device Manager), no device settings or options for scrolling listed anywhere. How do I get it to stop?

***Subject edited for clarity by the moderator.***