If you need to uninstall the IE 11update, click the Start button, type Programs and Features in the search box, and then select View installed updates. Under Uninstall an update, scroll down to the Microsoft Windows section. Right-click Internet Explorer 11, click Uninstall, and then when prompted, click Yes.
At this point, you'll need to choose one of the following:
(to finish the process of uninstalling Internet Explorer 11 and restore the previous version of Internet Explorer)
Microsoft has released a toolkit to disable the automatic delivery of
Internet Explorer 11 to machines where Automatic Updates is enabled. The toolkit can be obtained from Microsoft's Download Center website. To locate the toolkit on the Download Center website, simply type "Internet Explorer 11 toolkit" into the search field located on the main page.