When you use programs and surf the Internet, your computer saves files into cache so that your computer can recall them faster. However, when your computer has many files saved into cache, your computer may perform at a slower pace or it may cause programs to shut down. This can cause you to lose work and valuable time. It is important to clear your cache routinely to keep your computer running at top speed.
Launch Internet Explorer.
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Click the "Tools" menu and select "Internet Options."
Select the "General" tab and click "Delete" under Browsing History.
Check the boxes next to "Temporary Internet Files," "Cookies" and "History," and click the "Delete" button.
Launch Mozilla Firefox.
Select the "Firefox" menu, choose "Options" and choose "Options" again from the menu that slides out.
Click the "Privacy" tab and choose "Settings."
Check all the boxes under the History section and click "OK."
Choose the "I Close Firefox" option in the Keep Until drop-down menu.
Click "OK" and Close Firefox.
Save all work and bookmark any needed websites before deleting Internet files.