If you delete a query that is being used by a view, the view is subsequently not associated with a query and does not have data the next time that you open its workspace.

1.Click  Queries located in the toolbar.

2.On the left side of the window, click the plus sign (+) to expand Windows OS and scroll down to NT Process and expand it to see the queries.

3.Select the Query you want to delete and click Delete Query.

4.Click OK to confirm.