Right click at Start button > select Command Prompt (ADMIN) > at the flashing prompt, type powershell > press Enter key.
At the flashing prompt, copy/paste this command ( please use copy/paste to avoid typo )...................
Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}
press Enter.
Restart computer.
Try Edge again.