Automator Keeps Opening Multiple Untitled Files
Delete the Saved State files.


Quit Automator.
Bring Finder to the front.  
Hit  Cmd ⌘   N  for New Window, then  Cmd ⌘   Shift ⇧   G  for Go To...  
Copy/paste ~/Library/Saved Application State/com.apple.Automator.savedState  
Delete the folder contents.