How to Delete Google Search and Web Activity HistoryGoogle keeps a record of all the searches you made using Google search. This helps in providing a better search experience (such as personalized search, auto-fill, etc…) and an accessible list of all your searches.
It is handy, but it may also compromise your privacy, because if your friend, family member or anyone else will search from your PC or phone, they be able to see the autofill. Deleting your browser history will not help delete Google’s search history, it is separate from the browser history and can be accessed using your Google account.
In this tutorial, we are going to show you how to delete Google search history on a per-item or per-period basis. It’s also possible to simply delete the whole search history at once.
See full detail at: Ubergizmo