How to Get a Vertical Taskbar on Windows 10
Windows 10’s taskbar normally stretches across the bottom of the screen, but you can move it to the left or right side of the screen in a vertical orientation. It’s great for widescreen displays, giving your applications more vertical screen real estate.
First, right click on the taskbar and locate the option called “Lock The Taskbar” in the list. If that option has a checkmark beside it, click on it. This unlocks the taskbar so you can move it.