This one is pretty easy to understand. If you need to print (note that not all print devices are physical printers, they could be XPS or PDF writers, etc), you need this service. If you never print, you can disable this service and save around 3-4MB of RAM. You can also disable this service temporarily by typing Net Stop Spooler at a command prompt with administrative rights (Net Start Spooler will start it up again).
Display Name:
Print Spooler
Service Name:
Spooler
Process Name:
spoolsv.exe
Description:
Loads files to memory for later printing.
Path to Executable:
%windir%\system32\spoolsv.exe
Default Startup:
- Home Basic: Automatic
- Home Premium: Automatic
- Business: Automatic
- Enterprise: Automatic
- Ultimate: Automatic
Log On As:
Local System Account
Desktop Interaction:
Yes
Depends On:
- Remote Procedure Call (RPC)
- DCOM Server Process Launcher
Required For:
- Fax
Memory:
N/A
CPU:
N/A
Do you know something about this service that I don't? Please leave a comment below so I, and everyone else reading this, can benefit from your knowledge!

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Comments
xlr8
Aug 13, 2008 at 8:07 pm
What if you have the opposite problem and the print spooler needs to be manually started every time you want to use a printer?
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