If you're having problems with Internet Explorer, see if you can find a solution in What to do when Internet Explorer stops working before uninstalling. If you want to uninstall the browser, here's how:
Click the Start button, and enter Programs and features in the search box.
Click Programs and Features in the list of results, and then click View installed updates.
Find Windows Internet Explorer under Microsoft Windows.
Right-click Windows Internet Explorer, and then click Uninstall.
In the Uninstall an update dialog box, click Yes to uninstall.
Click Restart now to finish uninstalling and restore previous versions of the browser, or click Restart later.