Most computer users prefer to keep their privacy when they are using their computer, they don’t want other people that they share their computer to see what they are searching. If you share a PC and don’t want others to see what you’ve searched for, you can turn off the recent searches feature:
1. Click on your Start menu Search box then type GPEDIT.MSC and press Enter to launch the Group Policy Editor.
2. Go to User Configuration
3. Select Administrative Templates
4. Click on Windows Components
5. Go to Windows Explorer
6. At the right side pane Double-click on “Turn off display of recent search entries in the Windows Explorer search box” and select Enabled from the window that appears.
7. Click OK and your done.
Important Note: This tip will not work if you have the Home Premium, Starter, or Home Basic editions of Windows 7.