Erase the Search Suggestions in Windows 8

We used to search for some file by using the search box in File Explorer.Windows usually stores the search key what we used earlier.
In the below pic i searched for some keywords like p6,-06-
Windows stores it and displays it when we use it again

So in order to erase the keywords what we used earlier follow the steps to do
1.Open Windows Registry Editor.
By pressing Window key+R and type regedit and Enter.

2.Now navigate to following path 

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\WordWheelQu​ery


3.Now Right click on the WordWheel Query and select Export and give any name as you desired.

Note:
In order to have a backup of this we are going for Export.
4.Now back to our objective, Again Right Click on WordWheel Query and select Delete.

It will ask an conformation, click on Yes.

5.Now open any file explorer and click on Search box

That's it. .