The printer spooler is the component, which assists your Windows computer with interacting with the printer. It is responsible for properly ordering the print jobs in the print queue. When a printer spooler error message comes up, it may be because the properties have not been set rightly.
You also need to stop interaction with the desktop. For this, go to the Log On Make sure that the box beside Allow Interaction With Desktop is left unchecked. After doing that, hit Apply.