The "temporary internet files" folder stores a cache of images, scripts and html files that you download when accessing any webpage. This means that if you re-visit a site and the page hasn't changed, you can pre-load some elements to speed up browsing. You may wish to access the temporary internet folder to delete files or to access a cached item.
The Temporary Internet Files location is :
C:\Users\%username%\AppData\Local\Microsoft\Windows\Temporary Internet Files
If you wish to quickly access this folder, load the run box by pressing WINDOWS KEY + R and then paste in the above folder location and then press OK: