How to Fix Blue Screen of Death (BSOD) on Windows 10/11
The Blue Screen of Death is one of the most dreaded Windows errors. This comprehensive guide will help you diagnose the cause and fix it permanently.
In This Guide:
What is Blue Screen of Death?
The Blue Screen of Death (BSOD), also known as a "stop error," occurs when Windows encounters a critical error that it cannot recover from. The system halts to prevent damage and displays a blue screen with error information.
On Windows 10 and 11, the BSOD shows a sad face emoticon :( along with a stop code that helps identify the problem. Understanding this code is key to fixing the issue.
Common Causes of BSOD
- •Driver Issues - Outdated, corrupted, or incompatible drivers are the #1 cause
- •Hardware Failures - Failing RAM, hard drive, or overheating components
- •Corrupted System Files - Windows files damaged by malware or improper shutdown
- •Software Conflicts - Incompatible programs or antivirus software
- •Windows Updates - Buggy updates or failed update installations
Common Stop Codes and Fixes
| Stop Code | Cause | Fix |
|---|---|---|
| IRQL_NOT_LESS_OR_EQUAL | Driver trying to access invalid memory | Update or rollback recently installed drivers |
| CRITICAL_PROCESS_DIED | Essential Windows process crashed | Run SFC and DISM to repair system files |
| SYSTEM_SERVICE_EXCEPTION | System service encountered an error | Check for driver conflicts and Windows updates |
| KERNEL_SECURITY_CHECK_FAILURE | Kernel detected data corruption | Check RAM with Windows Memory Diagnostic |
| PAGE_FAULT_IN_NONPAGED_AREA | Invalid memory access | Test RAM and check for faulty drivers |
| DRIVER_IRQL_NOT_LESS_OR_EQUAL | Driver accessing improper memory | Identify and update the problematic driver |
Step-by-Step Fix Guide
Step 1: Boot into Safe Mode
- 1. Restart your computer and press F8 repeatedly (or hold Shift while clicking Restart)
- 2. Select "Troubleshoot" → "Advanced options" → "Startup Settings"
- 3. Click "Restart" and press 4 or F4 for Safe Mode
- 4. If Windows boots successfully, the issue is likely driver-related
Step 2: Update or Rollback Drivers
- 1. Press Windows + X and select "Device Manager"
- 2. Look for devices with yellow warning icons
- 3. Right-click the device and select "Update driver"
- 4. If BSOD started after a driver update, select "Roll Back Driver" instead
Step 3: Run System File Checker
- 1. Open Command Prompt as Administrator
- 2. Type:
sfc /scannow - 3. Wait for the scan to complete (may take 15-30 minutes)
- 4. If issues found, run:
DISM /Online /Cleanup-Image /RestoreHealth - 5. Restart your computer
Step 4: Check RAM
- 1. Search for "Windows Memory Diagnostic" in Start menu
- 2. Click "Restart now and check for problems"
- 3. Wait for the test to complete (computer will restart)
- 4. Check results in Event Viewer → Windows Logs → System
Step 5: Check for Overheating
- 1. Download a temperature monitoring tool (HWMonitor, Core Temp)
- 2. Check if CPU temperature exceeds 80°C under load
- 3. Clean dust from fans and vents
- 4. Ensure proper ventilation around the computer
- 5. Consider replacing thermal paste if temperatures are high
How to Prevent Future BSODs
- ✓ Keep Windows and drivers updated
- ✓ Use reliable antivirus software
- ✓ Don't install software from untrusted sources
- ✓ Monitor system temperatures
- ✓ Create regular system restore points
- ✓ Run disk checks periodically
Complete Troubleshooting Guide
How to Fix Blue Screen of Death (BSOD) — Complete Guide →Full symptoms, causes, step-by-step solutions, and automated repairs
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