This article explains how to add a Quick Launch toolbar to the taskbar in Windows 10.
Quick Launch – How to Add Quick Launch Toolbar in Windows 10
Microsoft added the Quick Launch bar in Windows XP to provide an easy way to access common apps from your taskbar, but it disappeared with the introduction of Windows 7. If you miss the Quick Launch bar and pinning apps to the taskbar just isn't good enough, it's pretty easy to add a Quick Launch bar of your own.
Here's how to add a Quick Launch toolbar to the taskbar in Windows 10:
Right-click on the taskbar to open the menu.