Spooler Subsystem app stopped working

Spooler subsystem app causes various apps to crash or hang that make use of printer. Here's a solution that worked for me...

1. Go to Programs and Features in Control panel > click Turn Windows features on or off
2. click + sign of Print services
3. Select LPD and LPR. You should remove Internet Printing Client. > restart your PC to ensure there is no error of spooler service.
4. Add your printer driver again.