Can’t open browser; Getting error “This app can’t open”

Introduction

When starting the browser Microsoft Edge or another app in Windows 10 you might get the following error:

This app can't open.

Microsoft Edge can't be opened using Built-in Administrator account. Sign in with a different account and try again.

1. Create your own users
   We advise you to create your own users as outlined in this article and disable the built-in administrator account.
2. Enable UAC
   User Account Control (UAC) needs to be enabled if you want to be able to use Microsoft Edge and other apps.First click on Start -> type in "user accounts" -> click on "User Accounts":

   

   disable-uac-02

   On the next screen click on "Change User Account Control Settings":

   

   On the next screen set the slider to the 3rd option from the bottom:

   Click on OK to save.

3. Reboot
   Click on Start -> type cmd -> hit Enter:On the command prompt type "shutdown /r /t 0" to reboot:

   

   Finished!