.... to reinstall Windows 10. That will put Internet Explorer back..
But as mentioned in many of those posts in this thread, it's not easy to actually remove IE from Windows 10. Hopefully, you've tried logging in as a different admin account and checking for IE there? It may just be disabled so I'll guess you've tried opening the Control Panel-Programs and Features-Turn Windows Features On and Off, then Uncheck the "Internet Explorer" box, restart the computer, then replace the CHECK mark in the box and restart the computer?
Still, if you don't really required IE, then why not use a different browser such as Edge, Firefox, Opera, etc.
Hope this helps.
Grif