How to install/start the new Windows 10 Edge browser?
How to reinstall the Microsoft Edge Browser
I had faced similar issues with the edge browser. It disappeared one day. There was no way to manually launch the edge browser. I was able to fix it by reinstalling the edge browser.
First we need to delete the corrupt Microsoft Edge Folder. The path => C:\Users\%username%\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe
Delete the "Microsoft.MicrosoftEdge_8wekyb3d8bbwe" Folder
You may not able to delete the folder itself and 2 or 3 files. but it does'nt matter. Select the folder, Hit Delete, Then if it asks for admin privileges, Just hit skip and then ok . Restart the computer.
Then Launch Powershell as administrator and run the following command. Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml" -Verbose}
Hit enter and once the command is executed, Quit powershell and restart the computer to complete the process.
The edge browser will be back and running in all its glory.
Please find below the link to the site that has step by step instructions to reinstall the edge browser http://www.techtantri.com/how-to-reinstall-microsoft-edge-browser/