If you want to delete duplicate Favorites in Microsoft Edge, then use this built-in option to remove duplicate bookmarks from the browser.

How to disable the First Run page on Microsoft Edge using Registry In the case that you don't have access to the Local Group Policy editor, you can still block Microsoft Edge from displaying the ...

You can disable InPrivate browsing on Microsoft Edge to make sure you can keep an eye on web activities on a shared PC, or if it's a requirement in your corporate network.