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Delete temporary Internet files and cookies

Last Updated: Feb 02, 2016 01:43PM MST


  • Test progress or scores are lost
  • Bookmarks appear or disappear unexpectedly
  • Test questions appear unanswered
  • Training time is not logged correctly
  • Test questions, labs, or video clips do not advance correctly
  • Your browser is redirected unexpectedly back to the login page
  • You encounter any of the following errors:
    • 500 Internal Server Error
    • 408 Request Timeout Error

Detailed information

Our site uses cookies and temporary Internet files to track users’ time online and training scores. Cookie data may become corrupted or unsynchronized.


Here are the steps to delete temporary Internet files and cookies in a variety of browsers. These settings will also set up the computer to automatically delete these files in the future; however, these settings might not persist after a reboot, depending on your administration settings.

Internet Explorer

  1. Open the Internet Options dialog box by pressing Alt+X or by clicking the Settings cog icon button and then clicking Internet Options in the Tools menu.  Alternately, open Internet Options in the Windows Control Panel
  2. In the General tab, select the Delete browsing history on exit check box
  3. Click the Delete button
  4. Select the Temporary Internet files and website files and Cookies and website data check boxes. You may leave Preserve Favorites selected, but nothing below Cookies should be selected
  5. Click the Delete button
  6. When deletion is complete, click the Settings button and then select Every time I visit the webpage
  7. Click the View Files button
  8. Delete all files in the Temporary Internet Files folder (either press Ctrl+A and then Shift+Delete or click Organize > Select All and then click Organize ▼ > Delete > Yes).
  9. Click OK on the Website Data Settings dialog box and close all windows associated with Internet Options


  1. Click the Settings menu hamburger icon button
  2. Click Options
  3. Click the Privacy tab
  4. In the history section, click the Firefox will drop-down button and select Use custom settings for history if it is not already selected.  If you are required to make a change, you will have to close and restart the browser and return to this History section
  5. Select the Clear history when Firefox closes check box
  6. Click the Settings button
  7. Select the Cookies and Cache check boxes, but clear all the other check boxes.  Click OK and OK again to close the Options dialog box
  8. With the browser window active, press Ctrl+Shift+Delete, or:
    1. Click again on the Settings menu hamburger icon button
    2. Click History and then click Clear Recent History
    3. Select only the Cookies and Cache check boxes and click the Clear Now button


  1. Click the Settings menu hamburger icon button
  2. Click Settings
  3. Scroll to the bottom of the page and click Show advanced settings
  4. Scroll to view the Privacy section, and click the Content Settings button
  5. In the Cookies section, select Keep local data only until you quit your browser, and then click Done
  6. Click the Clear browsing data button
  7. Click the Obliterate the following items from drop-down button and select the beginning of time
  8. Select the Cookies and other site and plug-in data and Cached images and files check boxes. Clear all the other check boxes
  9. Click the Clear browsing data button
  10. Close the Settings tab

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