Disable it by renaming the .EXE
("C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe")
https://www.experts-exchange.com/questions/28932710/Completely-disable-Edge-browser-within-Windows-10.html

Found a hack, but I would be careful that you don't mess your system up.

https://www.youtube.com/watch?v=Lbzd6A5Xhuc

You can only remove Internet Explorer through Add/Remove Features, Optional Features.
Instead of Disabling In Default App Settings you can choose default apps by file type.
And change html , htm , mht , mhtml , partial , shtml , svg , vdw , vdx , vsd , vsdx , vss , vssm , vssx , vst , vstm , vstx , webp , website , xht , xhtml
to open with the browser of your choice.

Hi,

Edge is an integral part of OS hence it cannot be completely removed from the system. As some things might be dependent on Edge, using Cmdlet to uninstall it might cause more problems to you.
Its good to change default browser and leave Edge as it is.


How to configure file associations .

https://blogs.technet.microsoft.com/windowsinternals/2017/10/25/windows-10-how-to-configure-file-associations-for-it-pros/

Renaming the exe or the Edge folder is just tweaks only and MS not recommending it.

Thanks,
Abhi...

Thank you very much!

You are most welcome and I was happy to help.

@john

Do NOT remove Edge. It is used for Windows, Help, Control Panel functions well beyond browsing.

Do you have information that truly backs your comment?

On Windows 10, it is one of the best browsers as well.  

This a matter of opinion.  I think if you took a survey Edge would most likely fall in last place.

Edge is the component used in underlying Windows functions. That was part of Windows 10 Information when it was released.

Edge is a top notch browser technically but usage is not that high so a survey would not be all that helpful.

We don't use Edge as our default browser in my network but we don't uninstall it either, exactly because of what John correctly said. It's got tendrils into a LOT of stuff in Windows 10 that will break if you try to uninstall it with DISM or any other way. There are a few other AppX apps that are similar, so it's really important to do your homework before removing any of the AppX apps, especially those that have names that begin with "Microsoft".

I do not disagree that it maybe a piston in the engine, but I was curious if the are any definitive statements that Edge needs to be part of Windows or is it Microsoft force feed us once again.