Scenario:
When you navigate to a custom search page, the Search Results web part is already populated even though you haven’t searched for anything yet.
You want the Search Results web part to remain empty until a user searches for something.
Solution:
Wrap the query template. {?{searchboxquery}}
1. Edit the page
2. Edit the Search Results web part
3. Click “Change query”
4. In the Query text box, wrap the filters {?{searchboxquery}}
5. When you click Test query, the preview should say “This query returned no results.”
6. Click OK to save the query
7. Click OK to save and close the web part properties
8. Save the page
SharePoint Mustard 