In the right pane, you’ll see a list of numbered values.
In the Registry Editor, use the left sidebar to navigate to the following key: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Word\WordWheelQuery To get started, open the Registry Editor by hitting Start and typing “regedit.” Press Enter to open Registry Editor and give it permission to make changes to your PC. And definitely back up the Registry (and your computer!) before making changes. That said, if you’ve never worked with it before, consider reading about how to use the Registry Editor before you get started. This is a pretty simple hack and as long as you stick to the instructions, you shouldn’t have any problems. Standard warning: Registry Editor is a powerful tool and misusing it can render your system unstable or even inoperable. In addition, if you want to clear your entire search history, this is the only way to do so in Windows 7.