touchpad scroll

Infopackets Ready Sally G. writes: " Dear Dennis, I just bought a new Windows 10 laptop and the touchpad scroll does not appear to be working. On my old Vista laptop, I had a scroll bar on the touchpad (on the far right), but the new Windows 10 ... laptop doesn't have this feature. Normally when I open a PDF file I need to zoom in and out. I would do this on the old laptop by pressing CTRL on my keyboard and using the scroll bar on the touchpad. On this laptop, I am at a complete loss. Can you tell me how I can fix my touchpad scroll? " My response: Each laptop manufacturer has their own way of ... (view more)