Clear cache is used as a troubleshooting technique when having problems accessing passworded websites. Clearing the cache deletes temporary files that your browser has downloaded. When the cache is cleared, it gives you a clean slate and forces your web browser to re-download fresh versions of all the files for a website.. Follow directions for you browser ususally found in settings. Clear Browsing Data. Clear the “Cookies and other Site Data.” Do not clear saved passwords to avoid having to re-enter passwords for every site you have visited.