If you installed the new Windows 10 insider Build 14942 and Edge closes after a few seconds, here’s a quick fix
– Open Regedit
– goto HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\Children
– Delete all the sub-keys under “Children”
Ejoy Edge again 🙂