Note: People have seem to have had issues doing this in Windows 10 pro, this could be because of Windows Updates. If the solution does not work, please use "Refresh your PC"
I have just upgraded to Windows 10 and had to switch to a Microsoft account while setting up Cortana.
Along the process, it asks me to sign out and sign back in, which I do. Then after signing back in, Microsoft Edge is missing. From the taskbar, and the "All Apps" section of the start menu.
This only occurs AFTER I have added my Microsoft account. And the only way is to open a .HTML file like this one:
(The name was from my Windows 7 Dualboot Install)
and please don't say "Just open the HTML file!" I need a proper solution to this.