The Most Common BSOD Error Codes and How to Fix Them

The infamous Blue Screen of Death (BSOD) is one of the most dreaded errors that Windows users encounter. When your computer suddenly crashes and displays a blue screen with error codes, it can be both confusing and alarming. In this guide, we’ll explore the most common BSOD error codes and how to fix them step by step.

1. What Is a BSOD?

A Blue Screen of Death (BSOD) occurs when the Windows operating system encounters a critical error that it cannot recover from, causing the system to crash. These errors are usually related to hardware failures, driver issues, or corrupt system files.

2. Most Common BSOD Error Codes and Fixes

2.1. CRITICAL_PROCESS_DIED

This error indicates that a critical system process has unexpectedly stopped working. Possible causes include corrupted system files or driver conflicts.

How to Fix:

• Run a System File Checker (SFC) scan:

sfc /scannow

• Update or roll back problematic drivers.
• Perform a clean boot to identify conflicting applications.

2.2. MEMORY_MANAGEMENT

This BSOD usually indicates a problem with your RAM or memory management in Windows.

How to Fix:

• Run the Windows Memory Diagnostic tool:

mdsched.exe

• Check for faulty RAM by swapping out memory modules.
• Update your drivers and ensure your BIOS is up to date.

2.3. IRQL_NOT_LESS_OR_EQUAL

This error typically points to a driver trying to access invalid memory addresses.

How to Fix:

• Update all device drivers, particularly network and graphics drivers.
• Run a memory diagnostic tool to check for RAM errors.
• Disable recently installed hardware to see if the issue persists.

2.4. PAGE_FAULT_IN_NONPAGED_AREA

This error usually occurs when the system tries to access memory that doesn’t exist.

How to Fix:

• Disable faulty drivers or antivirus software temporarily.
• Run the CHKDSK command to check for disk errors:

chkdsk /f /r

• Check your RAM for defects.

2.5. SYSTEM_THREAD_EXCEPTION_NOT_HANDLED

This BSOD often indicates a faulty or incompatible driver.

How to Fix:

• Update or reinstall problematic drivers.
• Boot into Safe Mode to uninstall recent updates or drivers.
• Run DISM to repair Windows system images:

dism /online /cleanup-image /restorehealth

3. How to Check BSOD Logs

BSOD logs can be found in the Event Viewer. Follow these steps to check logs:

1. Press Win + X and select Event Viewer.
2. Go to Windows Logs > System.
3. Look for critical errors with a red mark.
4. Click on the error to view details.

4. Preventing BSOD Errors

Regular maintenance can help you avoid BSODs:

• Keep drivers and Windows updates current.
• Run periodic system scans to detect and fix errors.
• Backup important files regularly.
• Monitor system temperatures to prevent overheating.

Conclusion

Blue Screen of Death errors can be intimidating, but with the right troubleshooting techniques, you can fix the most common error codes and get your system running smoothly again. Always make sure to back up your data and perform regular maintenance to minimize the risk of encountering these issues.

For more detailed troubleshooting, visit Microsoft Support.