Here are instructions on how to clear the temporary Internet files in Internet Explorer 9:
- Select Tools > Safety > Delete browsing history…/.
- Make sure to uncheck Preserve Favorites website data and check both Temporary Internet Files and Cookies then click Delete.
- You will get a confirmation at the bottom of the window once it has successfully cleared your cache and cookies.
- Close ALL applications and reboot your system to make sure you do not have any instances of Internet Explorer running.