This document explains how to set Internet Explorer 7, 8 and 9 back to their default settings.
There are two methods of doing this, all at once and step-by-step.
Note: Both methods do NOT remove your bookmarks.
Click on the Tools menu, then Internet Options.
Go to the Advanced tab and click on the Reset button.
Click on Reset.
Wait for the orange arrow to go through all of the steps.
Once all the steps are checked, click Close.
You will be prompted to restart Internet Explorer. Click OK.
Close Internet Explorer and reopen it. Internet Explorer should have all of its settings reset to the defaults.
Click on the Tools menu, then Internet Options.
Click on the Security tab and click on the Reset all zones to default level button.
Click on the Privacy tab and click on the Default button if available.
Click on the Advanced tab and click on the Restore advanced settings button.