In Windows 8.1, apps don't automatically get added to your Start screen or to the taskbar when you install them. To pin apps to the taskbar or to your desktop, follow these instructions.
From the Start screen, the Apps view, or in search results, swipe to select or right-click the app, and then tap or click Pin to taskbar. Or, if the app is already running in the desktop, swipe or right-click the icon on the taskbar and tap or click Pin this program to taskbar.
Press and hold or right-click the desktop, tap or click New, and then tap or click Shortcut.
Enter the location of the item or tap or click Browse to search for the item in File Explorer.
For more info about the taskbar, see How to use the taskbar. For more info about pinning apps to Start, see the All about Start tutorial.