Windows Error 0x000000D1 — DRIVER IRQL NOT LESS OR EQUAL

Windows BSOD DRIVER_IRQL_NOT_LESS_OR_EQUAL (0x000000D1) means a driver accessed paged memory at an improper IRQL. This guide covers everything you need to know about this topic, including common causes, step-by-step solutions, and answers to frequently asked questions.

Here are the key things to understand: Stop code: 0x000000D1 — driver-specific variant of 0x0A. Usually names the exact driver file causing the crash. Common with network, audio, and GPU drivers. Triggered by accessing paged memory at dispatch level or above. Understanding these fundamentals will help you diagnose and resolve this issue more effectively.

The most common reasons this occurs include: Buggy or outdated network adapter drivers. Corrupted audio or GPU drivers. VPN software with incompatible kernel drivers. Recently installed hardware with bad drivers. Identifying the root cause is the first step toward finding the right solution.

To resolve this, follow these recommended steps: Identify the driver named in the BSOD message. Update or rollback the identified driver. Uninstall VPN software temporarily to test. Use Driver Verifier to identify problematic drivers. If these steps do not resolve the issue, consider consulting additional resources or a qualified professional.

This article is part of our Windows Error Codes collection on Error Codes Wiki. We provide comprehensive, up-to-date information to help you find solutions quickly.