How to Clear Cookies, Cache, and History
When you receive a "disallowed key characters" error message, it means you need to clear your web browser's cookies.
Desktop Browsers
In most browers, you can use the following keyboard shortcuts to open menus used to clear your cache, cookies, and history:
Windows: Ctrl + Shift + Delete
Mac: Command + Shift + Delete
If this does not work, follow the instructions provided in the links below:
- Chrome
- Firefox
- Internet Explorer (9 and higher)
- Safari
- Opera
For other browsers, use the "Help" or "About" option to locatate instructions.