Over a period of time, Internet Explorer settings change as per changes made by user. You can easily reset Internet Explorer to revert it to original default state. It will delete browser history, temporary Internet files, cookies, form data and stored passwords. It will not delete favorites, feed added to personalize Internet Explorer.
Reset Internet Explorer to default settings
1. Open Internet Explorer on the computer.
2. Goto menu option Tools > Internet Options
3. Click Advanced tab on Internet Option window.
4. Click Reset button in Reset Internet Explorer Settings box.
5. Then Click Apply, OK
Please note, this is not reversible. Anything lost due to reset of Internet Explorer cannot be recovered – so be careful!