Windows 10: uncontrolled scrolling when I press the number keys in Windows 10

My laptop is running Windows 10 and is a Lenovo Ideapad with an intel i5-4210U procesor. I have had no problems with Windows 10 for the past 10 years . A few weeks ago , after an automatic update to Windows 10 from Microsoft , I started experiencing uncontrolled scrolling and the cursor getting frozen onscreen . Then I discovered , that the cursor comes back on , when I press the arrow keys on the keyboard. After I uninstalled KB 5029244 , and reinstalled Windows 10 , things have become better . However , the problem of scrolling down to the bottom , in almost all applications still persists w

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Scrolling Uncontrollably

My computer seems to scrolling uncontrollably, but not scrolling at the same time. Here are the syptoms:

1. It only scroll uncontrollably on the taskbar and address bar and tabs on search engine ( and similar program that have button on top like ms word),
2. It doesn't scroll up down on the page itself, I can still scroll on the page normally,
3. This problem occur randomly, sometime I can use my laptop normally sometime the random scroll make me unable to use the computer,
4. It can also be noted that sometimes when I write on the keyboard, it jumps to address bar (similar properties) or tabs (similar properties), and
5. When pressing "a" the scrolling stops, but I don't know why

Please help me resolve this issue...

 

Cursor scrolls uncontrollably.

This is a recent happening. I have no idea how it came about. I start the computer, and as soon as I place the cursor to type (applications, search boxes, etc.) it scrolls by itself to whatever boundary the placement has. I looked this up and found this discussion. Uncontrollable scrolling on windows 10 - December 2019 - Forums - CNET
Other than restore or reset, I've done several of the "fixes" listed. (Latest drivers, etc.) The only thing that worked is logging out, and back in. But this fix is temporary. Restarting the machine brings it back, and I have to Log Out/In again to stop it. This makes no sense. Any ideas how to rectify this short of reinstalling windows?

Machine is a MSI GS75 Stealth 9SF
Win 10 Home
16gb RAM
i7-9750H
nVidia RTX2070

 

Scrolling uncontrollable

Scrolling has gone haywire on my PC. Lists scroll uncontrollably. No button on my mouse has any effect. It does not work on this page. I have Windows 10 but I cannot select that version below because the drop down menus do not work. The menu flickers
on but disappears before I can click on an item. I have to type in a letter to see if something is available.