Windows 10 touchpad mouse buttons and start menu

[HelterSkelter]

When i pressed both of the mouse buttons at the same time in windows 8.1 it would open a new tab in chrome. when i do this in windows 10 it will sometimes open a new tab, but most of the time it launches the start menu.

how do i get it to stop launching the menu?

 

[Neemobeer]

Pressing both mouse buttons should open a menu. The top option is for a new tab. Perhaps you are just getting an extra click in there to open the new tab.