spoolsv is your print spooler it controls all your printer services and it looks like it isnt shutting down properly.
have you tried ending the process first then shutting down? Just to confirm this is the actual issue?
sorry if you know how to do this ill talk you through it just incase
hold down ctrl/alt then hit delete once
select task manager
select the processes tab
look for spoolsv.exe then highlight it , click end process then confirm in the next box
then shut down (shut down quickly as this process has a habit of turning itself back on
yuo may also have to stop print spooler
in task manager first but we'll try this one for now