Let me guess, you have searched something in Google that you wish to hide from the other users of the system or is it that you just want to add to your privacy?
So don’t get embarrass any more if the auto complete option pops up with some old words you searched for.
Here are the ways how you can clear the search history:
1. The best and easiest way is that just move the mouse over the old entries and press delete button.
2. If you are using Internet Explorer then click the “Delete Forms” button under the General option of Options Tab in Tool menu.
3. If you use Firefox, then clear the Private Data especially “Saved Forms”. Find the option in Privacy Tab under Options menu.
It is always advisable to delete all the private data and other things to add to the security.