The Procedure for How to Remove Facebook From My Computer | Techwalla
Unlike a Windows desktop program, the Facebook app is not on the list of programs in the Programs and Features section of the Control Panel. To delete the app from your computer, you need to remove it from the Windows 8.1 Start screen.
Press the "Windows" key to open the Start screen, then type "Facebook." Right- click "Facebook" from the Results bar, then select "Uninstall." Click the "Uninstall" ...