The error: The Print Spooler service crashes repeatedly, sometimes several times a day, taking all shared printers offline until it's manually restarted.
Environment: Windows Server acting as a print server, any supported version.
Why this happens: The spooler is a genuinely fragile piece of Windows — a single corrupted print job, a bad driver, or (since 2021) a real and serious class of security vulnerabilities collectively known as PrintNightmare can all crash it. A recurring crash (as opposed to a one-time crash) usually points to either a specific bad driver being hit repeatedly, or a stuck job in the queue that keeps getting retried and failing the same way.
The fix:
- Check Event Viewer (Application log, source Print Spooler or PrintService) for the specific crash reason — this usually names the failing driver directly.
- Stop the spooler service, clear the print queue folder (
%systemroot%\System32\spool\PRINTERS) of any stuck jobs, restart the service. - Update or, if necessary, remove the specific driver identified in the event log — old third-party print drivers are the most common repeat offender.
- Confirm the server is patched against known Print Spooler vulnerabilities — this is a security question as much as a stability one, and it's worth checking explicitly rather than assuming patching handled it silently.
One thing worth knowing: if this is happening on a domain controller that's also acting as a print server, the real fix is architectural, not technical — don't run print services on a DC at all. That combination has been a known risk surface for years independent of any specific bug.