Table of Contents
1. Run Windows Memory Diagnostic
2. Update or Roll Back Device Drivers
3. Use Blue Screen Troubleshooter
4. Scan for Corrupted System Files
5. Disable or Uninstall Recently Installed Software
Home System Tutorial Windows Series Fresh Guide: Fix Windows Blue Screen 'DRIVER_IRQL_NOT_LESS_OR_EQUAL”

Fresh Guide: Fix Windows Blue Screen 'DRIVER_IRQL_NOT_LESS_OR_EQUAL”

Aug 25, 2025 am 08:29 AM

If you encounter the "DRIVER_IRQL_NOT_LESS_OR_EQUAL" error, try these steps: 1. Run Windows Memory Diagnostic. 2. Update or roll back device drivers. 3. Use the Blue Screen Troubleshooter. 4. Scan for corrupted system files using SFC and DISM. 5. Uninstall recently added software.

Fresh Guide: Fix Windows Blue Screen “DRIVER_IRQL_NOT_LESS_OR_EQUAL”

If you're encountering the Windows Blue Screen error "DRIVER_IRQL_NOT_LESS_OR_EQUAL," it's typically caused by faulty drivers or memory issues. Here's how to resolve it:

The operating environment of this tutorial: Dell XPS 15, Windows 11

1. Run Windows Memory Diagnostic

This tool checks for potential RAM problems, which are a common cause of the DRIVER_IRQL_NOT_LESS_OR_EQUAL error. Faulty memory access can trigger incorrect IRQL (Interrupt Request Level) violations.

  • Press Windows R, type mdsched.exe, and press Enter.
  • Select Restart now and check for problems.
  • After reboot, the system will test memory before Windows loads.
  • Check the result upon restart—look for any reported memory errors.
Fresh Guide: Fix Windows Blue Screen “DRIVER_IRQL_NOT_LESS_OR_EQUAL”

2. Update or Roll Back Device Drivers

Outdated, corrupted, or incompatible drivers—especially for network, graphics, or storage devices—can cause this stop code. Updating ensures compatibility, while rolling back helps if the issue started after a recent update.

  • Press Windows X and select Device Manager.
  • Look for devices with a yellow warning icon.
  • Right-click suspected devices (e.g., display, network adapters) and choose Update driver.
  • Select Search automatically for updated driver software.
  • If the issue began after an update, choose Roll Back driver instead.
Fresh Guide: Fix Windows Blue Screen “DRIVER_IRQL_NOT_LESS_OR_EQUAL”

3. Use Blue Screen Troubleshooter

Windows includes a built-in troubleshooter that can automatically detect and fix common causes of stop errors, including driver misconfigurations and system file issues.

  • Go to Settings > System > Troubleshoot > Other troubleshooters.
  • Find Blue Screen and click Run.
  • Follow the on-screen instructions and apply any recommended fixes.
Fresh Guide: Fix Windows Blue Screen “DRIVER_IRQL_NOT_LESS_OR_EQUAL”

4. Scan for Corrupted System Files

Corrupted system files can interfere with driver operations and memory management. The System File Checker (SFC) and DISM tools can repair these issues.

  • Open Command Prompt as Administrator via Start menu search.
  • Type sfc /scannow and press Enter.
  • After completion, run: DISM /Online /Cleanup-Image /RestoreHealth.
  • Restart your computer after both commands finish.

5. Disable or Uninstall Recently Installed Software

Some third-party applications, particularly those with kernel-level drivers (e.g., antivirus, virtualization tools), can cause IRQL conflicts. Removing or disabling them may resolve the crash.

  • Press Windows I to open Settings.
  • Go to Apps > Installed apps.
  • Sort by installation date and identify recently added software.
  • Uninstall any suspicious or unnecessary programs, especially security tools.

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