IE 9 has a less-cluttered user interface, improved tab management and other new features.Because you can't take advantage of these features using XP Pro, you'll need to upgrade your operating system to a later version if you wish to use Internet Explorer 9.If you agree to that, that browser opens any time you click a desktop link that points to a Web page or when any application needs to display a Web page automatically.If you'd prefer to keep Internet Explorer as your default, do not answer "yes" when another browser offers to change your default.The change is applicable to 32 bit and 64 bit Windows platforms.
The installer may ask you to reboot your computer if you chose not to restart an internet browser when it prompted you to do so.
Check the system requirements page for Internet Explorer 9 and you won't find the words "XP Pro" or "XP" on it.
That's because IE 9 cannot run on those operating systems.
Microsoft Edge is built from the ground up to improve productivity, to be more secure, and to correctly, quickly, and reliably render web pages.
While Microsoft Edge is the default browser for Windows 10 and is the best fit for most users, we recognize that some Enterprise customers have line of business applications built specifically for older web technologies, which require Internet Explorer 11.