Windows & BSOD · high

How to fix0x0000003B

SYSTEM_SERVICE_EXCEPTION

What this error means

SYSTEM_SERVICE_EXCEPTION (0x0000003B) is a high-severity fault affecting the Windows operating system. An exception occurred while transitioning from unprotected user code to a protected kernel. The usual suspects are corrupt system files (ntoskrnl.exe), conflict with antivirus software and faulty Windows Updates. See the troubleshooting steps below for the fix.

Before you begin

Save open work and back up important files. Use instructions for your exact device and software version. If Windows cannot start, see the startup guide.

Work through these checks

0 of 2 complete
01Uninstall third-party antivirus programs (Avast, AVG, etc.) and use Defender
  1. Uninstall third-party antivirus programs (Avast, AVG, etc.) and use Defender
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors
02Run the disk error repair tool
  1. Run the disk error repair tool
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors

Possible causes

  • Corrupt system files (ntoskrnl.exe)
  • Conflict with antivirus software
  • Faulty Windows Updates