In your Windows 8.1 operating system, you use many applications and other services to complete your personal or professional work. These applications are very much important for you. But what happens when you try to open an application and it doesn’t get opened. Yes, sometimes when you try to open some apps in the Windows 8.1 it doesn’t get opened and gives you Windows 8.1 “this app can’t open” error on your computer screen. It is really a very shocking situation that you may lose the important data of computer even due to this error. Therefore, it is very important to fix this app can’t be opened error in Windows using some manual or automatic methods.