Dell touchpad not scrolling

Question

EDIT:

Under PS 7.1.3,

> Get-AppxPackage alpsdelltouchpadsettings
Get-AppxPackage: The 'Get-AppxPackage' command was found in the module 'Appx', but the module could not be loaded. For more information, run 'Import-Module Appx'

Following that, I tried what was instructed, and

> Import-Module Appx
Import-Module: Operation is not supported on this platform. (0x80131539)

which is widely reported in the web. So I stopped trying with PS 7.1.3.

Under PS 5.1,

> Get-AppxPackage alpsdelltouchpadsettings

returns nothing, but it works. So I tried finding the package by trial and error:

> Get-AppxPackage | grep alp
> Get-AppxPackage | grep touch
> Get-AppxPackage | grep input

None of these found any results. (I am a newbie with PS, but at one point I made sure grep and other commands were aliased, and I just double checked with Get-AppxPackage | grep power that grep is working, and it is case-insensitive).

---

My Dell Latitude touchpad is not scrolling with two fingers. I tried going to the Control Panel -> Dell Touchpad, but it doesn't work.

And I don't see any setting for the touchpad in Control Panel -> Mouse. This is the closest I get

Related:

1. https://www.dell.com/community/Latitude/you-ll-a-new-app-to-open-this-alpsdelltouchpadsettings/td-p/6228473