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. Note any recent driver or hardware changes. If Windows cannot start, use the startup guide first.

Work through these checks

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

Uninstall third-party antivirus programs (Avast, AVG, etc.) and use Defender.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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02Run the disk error repair tool

Run the disk error repair tool.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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Possible causes

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