Windows 10: Windows system menus stuck scrolling down

Windows system menus upon opening automatically go all the way to the bottom of the page. I cannot perform any windows system actions. Does not occur in any applications other than windows system. I have reinstalled mouse drivers, used every usb port on my pc, tried a different mouse. It is an issue with windows.

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Feature suggestion: Add right-click menu

Suggestion: Please add a Windows 7 Jump-List and/or right-click menu to the GPU-Z icon in the Windows taskbar. Possible menus in it would be "Exit" and "About GPU-Z...".
Maybe also "Switch to tab 1/Switch to tab 2/Switch to videocard 1/Switch to videocard 2" too.
Examples of programs that have such menus are ICQ, Skype, AIM.

NOTE: It seems for a right-click menu, Windows 7 is not needed - it works on WinXP and Vista too.
But even a Windows 7 Jump-list may be good enough.
What do you think?

 

Scroll bar on main menu scrolls straight to last item

When I click on the scroll bar of the main windows menu (bottom left button) and start to scroll down, the scrolling then continues automatically to the last item on the list so that I can't access the others. It is as if gravity has taken charge! There is no problem with scroll bars in web windows or in Excel. I think the same problem was happening in Word last week but it is not today. I have tried following various recommended fixes including a clean boot, running Windows defender scan and switching off some mouse functions. I am no computer expert so it is possible I have perforemd all these actions correctly. Nothing has solved the problem. I've also tried a different mouse.
Any suggestions as to what is the cause of the problem and how I might fix it would be very much appreciated. The graphics card is fairly ancient: could this be the problem?

 

Feature suggestions - move to proper menus, add Options window

Suggestions:
1) Remove main menus from top left menu (system menu) and move them to a standard Windows menu, at the top.
Leave the 6 system menu items (Restore --- Close) in system menu, move all the rest to that standard main menu. The main menu can be auto-hidable - pressing Alt key to invoke it or hide it, similar to the way IE11 menus and many Windows 10 built-in apps' menus work.

2) And/or, add an Options menu or button, which would invoke a separate screen with GPU-Z Options, similar to how most Windows apps work.
Most Windows apps have a separate Options screen, which GPU-Z lacks - one should be added.

Thanks in advance for listening!