Fred,
i believe you are using Windows 10 , which assigns Edge as the default browser.
Now you can Change IE to default as Edwin told or you can do it from IE itself
Open Internet Explorer , Look for the Setting icon or Press the "Alt" key,
Click the Tools button , and then click Internet options.
Click the Programs tab, and then click Make default.
Click OK, and then close Internet Explorer.
Hope this clears your doubt and resolves the issue for you.
Regards,
Dinu