G'afternoon woodelf.......I swear to the best of my ability, I am going to help you my friend.
Firstly, I suggest you download the Browser I use and you'll have a 'fallback' for if you are still unable to install Edge, in place of your Internet Explorer. Click the following to download Firefox.:-
https://www.mozilla.org/en-US/firefox/new/
Instructions......On the opening page...Click the box...'Download'
then..on next page.....'just the browser' then... 'save file'.....open your downloads folder and run Firefox Download File to install browser.
Having installed Firefox you can use it to install Edge, as follows:-
https://www.microsoft.com/en-us/edge
Instructions.....Similar to Firefox......save file...locate in Downloads folder and run to install.
You can have as many Browsers as you wish and go from one to another, as I often do. So keep both ,if you are able to download them successfully.
See how you get on. Incidentally, i have your address and shall bear in mind your kind offer.
Hans.