The Windows 10 taskbar usually sits at the bottom of your screen giving the you access to the Start Menu, as well as the icons of frequently used applications.
For one click easy access to your most used applications you can pin them to your taskbar with just a few clicks
Click the Start button (Bottom Left)
Find the application you wish to pin to the Taskbar
Right click the icon eg: Google Chrome
Move your cursor to More
Left click on Pin to Taskbar
With your application pinned to the taskbar, just single click to open the app
To remove applications from the taskbar you can right click the application and left click unpin from taskbar