Step by Step Guide to Fix Windows Stop Code 0x0000003D

0x0000003D Error: unexpected interrupt exception not handled

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What is 0x0000003D Error?


The Windows Stop Code 0x0000003D, labelled INTERRUPT_EXCEPTION_NOT_HANDLED, is a Blue Screen of Death (BSOD) that appears when the system detects an unhandled exception related to the processor's interrupt handling mechanism. This error is typically linked to problems with the Interrupt Descriptor Table (IDT), which maps interrupts to service routines during system execution. Although rare, this BSOD can occur in virtualised environments, on systems running hardware-level diagnostics, or when faulty drivers mismanage interrupt service routines (ISRs).

Causes

  • Faulty or Misbehaving Drivers: Corrupt or incompatible kernel-mode drivers may improperly register or handle interrupt requests, resulting in system crashes.
  • Incompatible or Virtual Hardware Configurations: Misconfigured virtual machines, emulated devices, or non-standard CPU features can interfere with system interrupt logic.
  • Corrupted or Misaligned Interrupt Tables: Critical memory areas managing interrupt calls may become corrupted due to faulty system calls or low-level bugs.
  • BIOS or Firmware Bugs: Outdated or misconfigured BIOS settings related to APIC (Advanced Programmable Interrupt Controller) may trigger interrupts improperly.
  • System-Level Debugging or Overclocking: Overclocked CPUs or software debugging kernels can produce unstable behaviour in ISR execution.
  • Inconsistent Windows Kernel Updates: Faulty patches or failed update attempts may cause ISR registration issues or interrupt conflicts.

Resolution Steps




1. Update or Roll Back Device Drivers

  • Press Win + X → Open Device Manager.
  • Pay close attention to drivers for network adapters, storage controllers, and system devices.
  • Right-click → Update Driver or Roll Back Driver if recent changes were made.

2. Run System File Checker and DISM

  • Open Command Prompt as Administrator and run:
  • sfc /scannow
  • Once complete, run:
  • DISM /Online /Cleanup-Image /RestoreHealth
  • These commands repair corrupted OS files affecting interrupt table access or kernel execution.

3. Disable Virtual Hardware or VM Features

  • If using virtual machines, disable unnecessary virtual hardware components like virtual floppy drives or serial ports.
  • Review your VM hypervisor settings (VMware, VirtualBox, etc.) for compatibility and system interrupt handling features.

4. Perform Clean Boot

  • Press Win + R → Type msconfig → Enter.
  • Under Services tab → Check Hide all Microsoft services → Click Disable all.
  • Go to Startup → Open Task Manager → Disable all startup programs.
  • Restart the system to isolate third-party software or services causing conflicts.

5. Reset BIOS to Default

  • Enter BIOS/UEFI setup (usually by pressing Del or F2 during boot).
  • Choose Load Optimized Defaults or Reset to Default Settings.
  • Save and exit. This helps restore safe APIC, interrupt, and chipset configurations.

6. Run Windows Memory Diagnostic

  • Press Win + R → Type mdsched.exe and hit Enter.
  • Select Restart now and check for problems.
  • Let the test run and resolve any detected memory integrity issues.

7. Update BIOS and Chipset Drivers

  • Visit your PC or motherboard manufacturer's website.
  • Download and install the latest BIOS firmware and chipset drivers.
  • This ensures compatibility with APIC configuration and hardware interrupt handling.

8. Perform System Restore

If the BSOD occurred after recent changes:

  • Go to Control Panel → Recovery → Open System Restore.
  • Choose a restore point before the error started.
  • Follow instructions to complete the process.

Final Thoughts

The 0x0000003D INTERRUPT_EXCEPTION_NOT_HANDLED error reflects a breakdown in the system’s ability to handle hardware or software interrupts, often triggered by bad drivers, BIOS misconfiguration, or interrupt table corruption.

To fix it:

  • Update or roll back interrupt-related drivers,
  • Reset BIOS and clean out conflicting virtual hardware,
  • And scan the system for OS-level corruption using built-in tools.

If none of these steps resolve the issue, consider:

Running a complete hardware scan and BIOS upgrade,

Or performing a clean install of Windows to resolve low-level interrupt handling faults.

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