Disable local search history for Windows 7

In Windows 7, due to the built-in Windows Search, the system automatically displays search suggestions when the user enters the content into the search box, and these suggestions are actually the previously saved search history.

In fact, this advice can also be disabled.

* WIN+R runs gpedit.msc to open Group Policy Editor
* Open User Configuration in the left panel > Manage Templates > Windows Components > Windows Explorer
* on the right Find the Turn Off Display Of Recent Search Entries In The Windows Explorer
* in the side panel. Double-click to select "Enable".

Part of the original text:

Windows Explorer shows suggestion pop-ups as users type into the Search Box. These suggestions are based on their past entries into the Search Box.