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The IRQL_NOT_LESS_OR_EQUAL error is a common Blue Screen of Death (BSOD) error in Windows 10 and 11. This error typically occurs when a system process or driver tries to access a memory address without proper permissions. Understanding why this error occurs and how to fix it is crucial for maintaining a stable system.
The IRQL_NOT_LESS_OR_EQUAL error can be triggered by various issues, including:
- Faulty or Incompatible Drivers: Outdated or corrupted drivers can cause this error.
- Hardware Issues: Problems with RAM, CPU, or other hardware components can lead to this error.
- Software Conflicts: Incompatible software or malware can interfere with system processes.
- Overclocking: Running hardware components beyond their factory settings can cause instability.
- Corrupted System Files: Damaged or missing system files can trigger the error.
1. Driver Issues: The most common cause is faulty or outdated drivers.
2. Hardware Failures: Problems with RAM or other hardware components.
3. Software Conflicts: Incompatibility between different software programs or with the OS.
4. Overclocking: Pushing hardware beyond recommended settings.
5. Corrupt System Files: Damage to critical system files.
1. Open Device Manager: Press `Win + X` and select Device Manager.
2. Find Problematic Drivers: Look for devices with a yellow exclamation mark.
3. Update Drivers: Right-click the device and select Update driver.
1. Open Windows Memory Diagnostic: Press `Win + R`, type `mdsched.exe`, and press Enter.
2. Restart and Check: Choose Restart now and check for problems.
1. Open Command Prompt as Administrator: Press `Win + X`, then select Command Prompt (Admin).
2. Run SFC Scan: Type `sfc /scannow` and press Enter. Wait for the process to complete.
If you have overclocked your hardware, revert to the default settings using your BIOS/UEFI interface.
1. Open Settings: Press `Win + I`.
2. Go to Update & Security: Click on Windows Update.
3. Check for Updates: Install any available updates.
1. Open System Configuration: Press `Win + R`, type `msconfig`, and press Enter.
2. Disable Startup Programs: In the Services tab, check Hide all Microsoft services, then click Disable all.
3. Disable Startup Items: Go to the Startup tab and click Open Task Manager. Disable all startup items.
4. Restart Your Computer: This will start Windows with only essential services.
Use a reliable antivirus program to scan your system for malware that could be causing the error.
1. Inspect RAM: Ensure RAM sticks are properly seated and functional. Consider using a tool like MemTest86 for a thorough check.
2. Examine Other Components: Ensure all hardware components are functioning correctly and properly connected.
1. Open System Restore: Press `Win + R`, type `rstrui`, and press Enter.
2. Choose a Restore Point: Select a restore point before the error started occurring.
If all else fails, consider resetting Windows. Go to Settings > Update & Security > Recovery > Reset this PC. Choose whether to keep your files or remove everything.
The IRQL_NOT_LESS_OR_EQUAL error can be frustrating, but following these steps can help you identify and fix the underlying issues. By updating drivers, checking hardware, and addressing software conflicts, you can maintain a stable and error-free system.
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