If you are missing a desktop icon because of other software installed on the Windows 8 system, use the following method to return to the icon for the Start screen, as an example of the IE 10 icon, if the IE10 icon disappears from the Start screen, you can do this:
First: Enter WIN+Q search All Programs
Second: Enter Internet Explorer or "I" and click or click Apps (program).
Third: In the search results, right-click Internet Explorer and choose to pin to the start screen.
Special NOTE: If you set up a browser other than Internet Explorer 10 as the default browser, the icon for Internet Explorer 10 will not appear on the Start screen. You must first set Internet Explorer 10 as your default browser, and then follow these steps.
Confirmed that you will not be able to use the Metro ie! when you set the Third-party browser to default