Erase allows you to selectively remove personal information such as:
Browsing History - each and every website is being recorded by your browser. .
Cookies - cookies are saved on your PC by websites to create a more personal and interesting browser history. However, these cookies can be used to track your browsing habits.
Internet Cache - Internet Explorer creates temporary files to improve your browsing speed that are not needed after you finish surfing. These files can take up large amounts of space and undermine your privacy.
Auto-Complete Forms - your browser stores all of the information you type into web pages. This makes it easier to fill out forms, but also makes it easier for nosy people to discover your personal information.
Recent Document History - Windows and Office maintain a list of recent documents used on your computer for your benefit. Deleting this list of files can stop others from knowing what you have been working on.
Instant Messaging History - many private conversations using Instant Messagers can be seen by others. Erase deletes the files that store the private conversation.
Recycle Bin - files are not actually removed from the drive when you delete them with Explorer. Instead, the files are moved to the Recycle Bin where they might be seen by other people until they are permanently erased. Erase empties your Recycle Bin to reclaim this disk space.