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Open Internet Explorer.
Click Tools in the left menu bar (if opened) or click on the Gear icon in the right toolbar.
Click Internet Options and choose the General tab.
Click the Delete... button under the "Browsing History" section.
Make sure you uncheck "Preserve Favorites Website Data" at the top of this window.
Make sure you check all options below "Preserve Favorites Website Data".
Click the Delete button.
- Deleting files could take awhile if you have a lot of files and history.
Click OK to close window.

Click Tools in the upper toolbar and select Clear Recent History.
Select the Time Range to clear (drop-down menu).
- Select Everything to clear all cache.
Click Details to choose what history elements to clear.
- e.g. cache and cookies
Click the Clear Now button.
Exit and re-launch the browser.

Open Safari.
Click Tools in the left menu bar (if opened) or click on the Gear icon in the right toolbar.
Select Reset Safari from the drop-down.
Choose what history and other elements to clear.
Click the Reset button.
Exit and re-launch the browser.

Open Opera
Click Tools and select Delete Private Data.
Expand Delete Options and choose what history elements to clear.
- e.g. Delete temporary cookies, Delete all cookies, Delete entire cache.
Click the Clear Now (Opera 9) or Delete (Opera 10) button.
Close window.
Exit and re-launch the browser.

Open Chrome
Click the Wrench Icon (Tools menu)
Select Options
Select Under the Hood on the left, click Clear browsing data... in the "Privacy" section.
Select the items you want to clear (e.g., Clear browsing history, Clear download history, Empty the cache, Delete cookies and other site data).

You can choose the period of time for which you want to clear cached information from the Clear data from this period drop-down menu. To clear your entire cache, select Everything.

Click Clear browsing data.
Close tab.
Exit and re-launch the browser.

Click Tools in the upper toolbar and select Options.
Select Privacy under Options on the left side of the screen.
Click Cache.
Click Clear Cache.
Click Clear.
Click OK.