Just right-punch your Recycle Bin and choose Properties from the menu.
Just uncheck the box, and terminate the dialog.
(I’d still recommend that you turn it back on when you are done cleaning up your setup)
Disable Delete Confirmation Dialog in Windows 7 or Vista
Every time you delete a file, Windows asks you "Are you sure you want to move this file to the Recycle Bin?" This is typically a good thing, to prevent you from deleting files by accident, but if you are trying to do some cleanup and need to delete a lot of files, you might not want to be prompted every single time.
