6.1 You can also delete cookies already stored on your computer:
6.1.1 In Internet Explorer, you can delete cookies by opening Internet Explorer, selecting the Tools button, point to Safety, and then select Delete browsing history. Select the Cookies and website data check box, and then select Delete. (Further instructions can be found at https://support.microsoft.com/en-gb/help/17442.)
6.1.2 In Firefox, you can delete cookies by, clicking on the menu button and choosing options, select the privacy and security panel and go to cookies and site data section. Click the clear data button to bring up the clear data dialog and here you can select site data to clear. (You can find further instructions for doing so at https://support.mozilla.org/en-US/kb/clear-cookies-and-site-data-firefox.)
6.1.3 In Chrome, you can delete cookies by choosing Settings/Advanced/Privacy and Security/Clear browsing data. (You can find instructions for doing so at https://support.google.com/chrome/answer/95647.)
Deleting cookies however, is likely to have a negative impact on the usability for you of the Site.