Driver_IRQL_Not_Less_Or_Equal

Quick Fix

Restart your PC, update all drivers, run Windows Update, and check for faulty RAM. If the BSOD still appears, boot into Safe Mode and run system file checks.

What it Means

The Driver_IRQL_Not_Less_Or_Equal blue screen happens when a driver tries to run at a higher interrupt request level (IRQL) than allowed, causing the kernel to halt. It’s a critical system error that stops Windows from operating safely.

Possible Causes

• 1
  Outdated or corrupted device drivers
• 2
  Faulty RAM or memory errors
• 3
  Corrupted system files
• 4
  Incompatible third‑party software
• 5
  Hardware failures

Step-by-Step Solutions

1. Boot into Safe Mode

   Start Windows in Safe Mode to prevent the error from loading during startup. Press F8 or Shift+Restart and choose Safe Mode with Networking.

2. Update Drivers

   Open Device Manager, right‑click each device, and select 'Update driver'. Prefer the manufacturer’s website for the latest versions.

3. Run SFC

   Open Command Prompt as Administrator and run sfc /scannow to scan and repair corrupted system files.

   sfc /scannow
4. Check RAM

   Use MemTest86 or Windows Memory Diagnostic to test for bad memory modules. Replace any failing RAM.

5. Clean Boot

   Disable non‑Microsoft startup items via msconfig to isolate third‑party software causing conflicts.

6. Reinstall Problematic Driver

   If a specific driver is identified, uninstall it, reboot, and reinstall the latest version.

7. Repair Windows Image

   If errors persist, run DISM to repair the Windows image before attempting a reset.

   DISM /Online /Cleanup-Image /RestoreHealth
8. Last Resort – Reset or Reinstall Windows

   Back up data, then perform a Windows reset or clean install if the BSOD continues.

Commands You Can Try