How to delete file directly without sending recycle bin

Method 1 :    delete single file using shift + delete keys

If you want to delete a single file at deleting time first select file and press shift + delete keys . 

Method 2 : delete all files with out sending recycle bin

Step 1  :Select  the recycle bin   icon and click right-click button select properties option .

Step 2 : Recycle properties window was open . select radio button on this window  " Don't move files to the recycle bin .remove files immediately when deleted. 

Step 3 : custom size radio button use to delete file if  over flow the customizing size.