INSTRUCTION COHERENCY FAULT (0X00000056) Blue Screen Fix Guide (Windows 10/11)

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How to Fix the INSTRUCTION COHERENCY FAULT (0X00000056) Blue Screen in Windows 10/11

The INSTRUCTION COHERENCY FAULT (0x00000056) is a critical error that causes your Windows system to crash and display the dreaded Blue Screen of Death (BSOD). This error typically occurs when theres an inconsistency in how your CPU executes instructions, often due to hardware issues, corrupted system files, or problematic drivers. If youre experiencing this issue, dont worrythis guide will walk you through identifying and resolving it step by step.

What Causes the INSTRUCTION COHERENCY FAULT (0x00000056) Error?

The error can stem from several underlying problems:

  • Faulty or outdated hardware, such as a failing RAM module, overheating CPU, or issues with your motherboard.
  • Corrupted system files due to improper shutdowns, malware, or failed updates.
  • Incompatible or buggy drivers, especially those related to hardware components like graphics cards, chipsets, or storage controllers.
  • Overclocking issues

    if youve manually adjusted CPU/GPU settings without proper stability testing.

  • Malware or system corruption affecting core Windows processes.

How to Fix the INSTRUCTION COHERENCY FAULT (0x00000056) Error

### **Method 1: Run System File Checker and DISM**
Corrupted system files can trigger this error. Use Windows built-in tools to repair them:

  • Open Command Prompt as Administrator:
    • Press Win + X, then select Terminal (Admin) or Command Prompt (Admin).
  • Run the following commands one by one, pressing Enter after each: 
    DISM /Online /Cleanup-Image /RestoreHealth
    sfc /scannow
  • Restart your PC and check if the issue persists.

### **Method 2: Check for Hardware Issues**
Faulty RAM or overheating can cause this error. Test your hardware:

  • Test your RAM:
    • Use Windows Memory Diagnostic to scan for errors: 
      mdsched.exe

      Select “Restart now and check for problems.”

    • If errors are found, run the test multiple times or replace the RAM sticks.
  • Monitor CPU/GPU temperatures:
    Use third-party tools like HWMonitor to ensure your CPU and GPU arent overheating. Clean dust from fans and reapply thermal paste if needed.
  • Check for loose connections: Reseat RAM, graphics cards, or other hardware components.

### **Method 3: Update or Reinstall Drivers**
Outdated or conflicting drivers are a common culprit. Heres how to fix them:

  • Open Device Manager by pressing Win + X and selecting it.
  • Look for devices with a yellow warning icon (e.g., “Other devices” or your GPU). Right-click the device, then select Update driver, choosing to search automatically.
  • If no updates are found, manually download the latest drivers from the manufacturers website (e.g., NVIDIA, AMD, Intel).
  • Roll back problematic drivers:
    • In Device Manager, right-click a driver (e.g., GPU), select Properties, then Driver, and choose Roll Back Driver.
  • Uninstall problematic drivers:
    Use the Uninstall device option in Device Manager, then restart your PC to reinstall them automatically.

### **Method 4: Run CHKDSK for Disk Errors**
Corrupted files on your storage drive can trigger this error. Run CHKDSK to scan and repair disk issues:

  • Open Command Prompt as Admin and run: 
    chkdsk C: /f /r

    (Replace “C:” with the correct drive letter if needed.)

  • If prompted, press Y to confirm. Restart your PC afterward.

### **Method 5: Disable Overclocking or BIOS Settings**
If youve overclocked your CPU/GPU:

  • Enter your BIOS/UEFI (usually by pressing Del, F2, or Esc during boot).
  • Reset all overclocking settings to default and save changes.
  • Update your BIOS to the latest version from your motherboard manufacturers website.

### **Method 6: Perform a Clean Boot**
A clean boot helps identify if a background process is causing the issue:

  • Press Win + R, type msconfig, and press Enter.
  • Go to the Services tab, check Hide all Microsoft services, then click Disable all.
  • Go to the Startup tab, click Open Task Manager, and disable all startup items.
  • Restart your PC. If the error doesnt occur, a third-party app or service is likely the cause.

### **Method 7: Reinstall Windows (Last Resort)**
If all else fails, a clean install may be necessary:

  • Back up important files using an external drive.
  • Download the Windows Media Creation Tool.
  • Create a bootable USB, then install Windows fresh while keeping your files (if possible).

FAQ About INSTRUCTION COHERENCY FAULT (0x00000056)

Q: Is this error hardware-related or software-related?
A: It can be either. While often linked to hardware (e.g., RAM, overheating), corrupted system files or drivers can also trigger it.

Q: Will a new CPU fix this?
A: If the error persists after testing your current CPU, a faulty processor could be the issue. Consider RMA if under warranty.

Q: Can I prevent future BSODs?
A: Yes! Keep drivers updated, avoid overclocking without stability tests, and use reliable antivirus software to prevent corruption.

Q: Does this error delete my files?
A: No, but its critical to back up data if youre troubleshooting hardware issues or reinstalling Windows.

Q: Why does this happen randomly after updates?
A: Updates can introduce bugs. If the issue starts after an update, roll back the update via Settings > Update & Security > Recovery > Go back.

Final Thoughts

The INSTRUCTION COHERENCY FAULT (0x00000056) is frustrating but usually fixable with systematic troubleshooting. Start with software fixes like SFC and DISM, then move to hardware checks if needed. If the problem persists, consider professional diagnostics for deeper issues.

Last Updated: December 13, 2025

Tested on: Windows 10 (22H2) & Windows 11 (23H2)

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