How to Delete My History
Deleting Internet history is very important, especially on public computers or computers that many people have access to. Many Web browsers store information such as form data, passwords, log in names, or keep you logged into website accounts that you may not want to be logged into after you log out of your computer (e.g.social networking, email, work, financial accounts, etc.). This means someone can hijack an account of yours and do unspeakable things to it.
Click on the "Tools" menu in the Navigation toolbar on the top of the Web browser.
Click on the "Clear Recent History..." option. A box titled "Clear Recent History" will now pop up.
Click on the "Clear Now" button to delete all the history.
Microsoft Internet Explorer
Click on the "Tools" button on the top right corner of Internet Explorer.
Select "Delete Browsing History...," which is the first option in the "Tools" menu.
Press the "Delete all..." button in the window that pops up. The history will now be deleted.