0x00000008BSODCritical

0x00000008 — IRQL not Dispatch Level | Blue Screen Fix Guide

IRQL_NOT_DISPATCH_LEVEL

Windows XPWindows VistaWindows 7Windows 8Windows 10Windows 11

What Does 0x00000008 Mean?

A kernel operation required the IRQL to be at DISPATCH_LEVEL, but it was not. This indicates a synchronization error in a driver or the kernel.

Real-World Causes

1Driver synchronization error
2Incorrect IRQL management in a driver
3Corrupted kernel state

Symptoms

⚠Blue screen with stop code IRQL_NOT_DISPATCH_LEVEL
⚠System reboots unexpectedly
⚠Possible data loss from unsaved work

DIY Fix

Beginner-friendly steps you can try at home

1Restart your computer
2Run System File Checker (sfc /scannow)
3Check Windows Update
4Run DISM /Online /Cleanup-Image /RestoreHealth

Advanced Fix

For experienced users and IT professionals

1Analyze minidump with WinDbg
2Check Event Viewer for correlated errors
3Use Process Monitor to trace system activity
4Perform clean boot to isolate the cause

Frequently Asked Questions

What causes IRQL_NOT_DISPATCH_LEVEL?

A kernel operation required the IRQL to be at DISPATCH_LEVEL, but it was not. This indicates a synchronization error in a driver or the kernel.

Can I fix IRQL not Dispatch Level myself?

In many cases yes. Start with basic troubleshooting like restarting, updating drivers, and running System File Checker. If the issue persists, advanced analysis of crash dumps may be needed.

Related Error Codes

0x0000000AIRQL not Less or Equal 0x00000009IRQL not Greater or Equal

About the Author

Windows Troubleshooting Team

Verified against official Microsoft documentation and real-world diagnostic data. Error behavior confirmed across Windows 10, Windows 11, and Windows Server.