Internet Explorer was once the most widely used web browser, attaining a peak of about 95% usage share by 2003. Its usage share has since declined with the launch of Firefox (2004) and Google Chrome (2008), and with the growing popularity of mobile operating systems such as Android and iOS that do not support Internet Explorer.
On March 17, 2015, Microsoft announced that Microsoft Edge would replace Internet Explorer as the default browser “for certain versions of Windows 10”. This makes Internet Explorer 11 the last release.
Thus, Microsoft has decided to shut down Internet Explorer and continue Microsoft Edge.