It’s much easier just to disable Microsoft edge in Windows 10 than removing it completely. As I’ve mentioned above, there's no default option available to disable Microsoft Edge in Windows 10.
The trick here is to rename the Edge’s folder in order that the system and other software couldn’t recognize or find the executable file from its changed path.
To disable Microsoft Edge in Windows 10, follow the steps given below:

Open This PC or Windows Explorer.
Navigate to C:\Windows\SystemApps. Replace C:\ if your Windows 10 was installed in some other drive of your device.
Look for the Microsoft Edge folder, Rename it to any name. For example, Microsoft.MicrosoftEdge_disabled.
Restart your computer.

Now that the folder is renamed, any request involving opening Microsoft Edge will fail as the file does not exist in its original path. Therefore, Microsoft Edge will not be used as if it is disabled in Windows 10.
Please keep in mind that the renaming process requires admin privilege to do so. So, make sure you’re logged in with the administrative account before you attempt to rename the Edge folder, else, it won’t allow you to rename the Edge folder.
Also, make sure that all the Microsoft Edge windows and instances are closed and no service relates to Microsoft Edge is currently running while you are renaming the folder. Otherwise, the renaming will fail and will return an error that reads “the action can’t be completed because the folder or a file in it is open in another program”.
To want to know more about how to uninstall Microsoft Edge completely feel free to visit our web portal.