A lot of people don’t want to use Edge in Windows 10. I personally love it but if you want to know how to make Internet Explorer (or any other browser) your default then this is how you do it:
Click Start and Click Settings:
Select System:
Select Default Apps & scroll down to Web Browser then click on Microsoft Edge
Select IE
THERE IS NO SAVE BUTTON!!!!
Just click X
To attach IE icon to your task bar then click start and type Internet Explorer:
Right click the Internet Explorer and click Pin to Taskbar.
Done!