7 Ways the Printer Spooler Utility Can Fix Your Printing Queue

When to Restart the Printer Spooler Utility — and How to Do It Safely

The Printer Spooler is a small but critical service that manages print jobs sent from your computer to a printer. When it behaves badly—jobs stuck in queue, repeated error messages, or printers disappearing—restarting the spooler often resolves the problem. This article explains when a restart is appropriate and gives safe, step-by-step instructions for Windows and macOS.

When to restart the Printer Spooler

• Print jobs stuck in queue: A job remains “Printing” or “Paused” and never finishes.
• New jobs won’t start: You send documents but nothing reaches the printer.
• Printer disappears or shows offline: The device vanishes from the list or reports offline despite being connected.
• Repeated spooler errors: Error messages referencing the spooler or print spooler service.
• High CPU or memory by spooler.exe: The spooler process consumes unusually large resources.
• After driver or network printer changes: To clear cached settings after installing drivers or moving printers.

If the issue is recurring frequently, investigate drivers, network problems, or malware rather than relying on frequent restarts.

Safe preparation (before restarting)

1. Save open documents to avoid data loss from interrupted print jobs.
2. Notify others if using a shared print server so they don’t lose work mid-job.
3. Check for active important jobs and note job names if you need to resend them later.
4. Have admin credentials ready for system-level actions.

How to restart the Printer Spooler safely (Windows 10 / 11)

Option A — Quick restart via Services:

1. Press Windows+R, type services.msc, press Enter.
2. Find Print Spooler in the list.
3. Right-click → Restart. Wait until status shows “Running”.

Option B — Using Task Manager (force stop then start):

1. Press Ctrl+Shift+Esc to open Task Manager.
2. Under the Services tab locate Spooler → right-click → Stop.
3. Wait 10–15 seconds. Right-click → Start.

Option C — Command line (elevated):

1. Open Command Prompt as Administrator.
2. Run:

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net stop spooler net start spooler 

3. Confirm both commands complete successfully.

Option D — Clear stuck jobs before restart (helps persistent queue issues):

1. Stop the service (Services, Task Manager, or net stop spooler).
2. Open File Explorer and navigate to:
   • C:\Windows\System32\spool\PRINTERS
3. Delete all files in that folder (these are print job files).
4. Start the spooler (net start spooler or Services).
5. Resend any important print jobs.

How to restart the Printer Spooler safely (macOS)

macOS uses different mechanisms (CUPS). Restarting CUPS can clear print issues.

Option A — System Preferences:

1. Open System Settings → Printers & Scanners.
2. Remove and re-add the problematic printer (this effectively clears the queue).

Option B — Terminal (recommended for advanced users):

1. Open Terminal.
2. Run:

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sudo launchctl stop org.cups.cupsd sudo launchctl start org.cups.cupsd 

3. Enter your admin password when prompted.

Option C — Reset printing system (last resort):

1. System Settings → Printers & Scanners.
2. Right-click (or Control-click) the printers list → Reset printing system…
3. Re-add printers and drivers. Note: this removes all printers and queues.

Post-restart checks

• Print a test page.
• Re-add any removed printers if needed.
• Check printer status and driver versions.
• If problems persist, update or reinstall the printer driver, verify network connectivity, and check for firmware updates on the printer.

When not to restart (and next steps)

• If printing failures follow a new driver or OS update, first roll back or update the driver.
• For intermittent network-related printing issues, test network stability and DNS.
• If spooler crashes repeatedly, scan for malware and check Event Viewer (Windows) or system logs (macOS) for errors. Consider contacting IT support or the printer vendor.

Safe spooler restarts resolve many common printing problems. Use the steps above to perform restarts with minimal disruption and follow up with driver, network, or security checks if issues recur.