Sometimes, Windows will have issues deleting documents from your printing queue. If the document won't delete, try these steps.
WIN-rto bring up the
Printer Spoolin the list. Right click it and select
C:\Windows\system32\spool\PRINTER. The capitalization of the
PRINTERfolder may be different, or it may even be a plural
PRINTERS. Regardless, delete all the files in the
PRINTERfolder, but not the folder itself.
Pause printing. Close and reopen the queue and the frozen documents should be gone.