Here's how you can pin desktop apps to the taskbar in Windows 8.1. This makes it faster and easier to access them.
1. Open the app you want to pin while in the desktop.
2. Right-click the app's icon in the taskbar (or press and hold the app icon instead).
3. Select the "Pin this program to taskbar" option.
Your app will now be pinned to the taskbar for more convenient access.
If you use Word a lot (like me), can’t get enough of PowerPoint, or maybe you love doodling in Paint, you can pin your favorite programs to the taskbar on your desktop so you can get to them in one click.More at Windows