How to reinstall microsoft edge? - farhansadik/windows-machine-backup GitHub Wiki

First step try to repair Edge:

Open Start > Settings > Apps > Apps & features Find Microsoft Edge, Select it > Click Advanced options >Click Repair

If issue persist try a clean boot. it allows you to run your PC with only a minimal set of drivers and programs:

On your keyboard, press the Windows logo key and R at the same time, type msconfig and press Enter.
Go to Services tab, check the box for Hide all Microsoft services. Click the Disable all button.
Go to Startup tab and click Open Task Manager.
Select each item on the list and click Disable.
Close your Task Manager and restart your computer.
If Edge still opens and closes unexpectedly in a few seconds.

Also you can reinstall Microsoft Edge:

On your keyboard, press the Windows key and S at the same time, then type powershell. Right-click Windows PowerShell and select Run as administrator. When prompted with the administrator permission, click Yes to continue.
In the PowerShell window, copy and paste in the following command: Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}
You will see a Deployment Operation Progress pop up. Wait for the process to finish. Then try your Edge again.