Hi,
Here are the steps to erase searches, that happen when you type in a letter, and it pulls down the words for you to click on. This is part of the Internet Explorer settings.
At any web page, click on Tools at the top, then click on Internet Options.
Click on the Content tab, then toward the bottom, on the right, click on the Auto Complete button.
Now, near the top, under the heading "Use Auto Complete for", left click on any checkmarks (to remove them), and click on OK.
You can also click on the Clear Forms and Clear Passwords buttons to completely remove all of it.
Also, Here is a link for a great, free cleaner, that clears out cookies, history, etc, junk files:
http://www.ccleaner.com
This program, under Options, can also be set to keep cookies or URL's of places you visit often. It does a much better job of deleting junk files that Windows does, using Disk Cleaner, etc.
Best wishes,
fredg