I have been using Windows 7 for almost half a year. Its search function is much more powerful than that of XP. Although it still can't match the search speed of Everything, I am still quite satisfied. However, while being powerful, it has also become smarter. It leaves records in the search bar after we look for information, which might possibly disclose our personal privacy. Therefore, after searching, it's better not to keep the search record. So how can you delete your search history?