Hardware⏱️ 2 min read📅 2026-05-29

How to Fix: BSOD help! - ostensibly caused by classpnp.sys

BSOD caused by classpnp.sys, suspecting hardware issue with new mouse or SSD.

Quick Answer: Try booting in Safe Mode and see if the BSOD persists. If it doesn't, try removing the new mouse and SSD to isolate the issue.

The BSOD caused by classpnp.sys is often related to a driver issue or hardware malfunction. Given that the problem persists even after trying various troubleshooting methods, it's essential to focus on resolving any potential driver conflicts.

💡 Why You Are Getting This Error

  • [Cause]

🔧 Proven Troubleshooting Steps

Method 1: Driver Rollback

  1. Step 1: Open Device Manager, find the Class PNP device, and right-click on it to select 'Properties'. In the Properties window, click on the 'Driver' tab and then click 'Roll Back Driver'.

Method 2: System File Checker with Driver Update

  1. Step 1: Run the SFC command (sfc /scannow) to scan and repair any corrupted system files. Then, update your drivers using the built-in Driver Update tool or a third-party driver update software.

✨ Wrapping Up

It's also recommended to monitor your system's performance and check for any pending Windows updates. If the issue persists, consider seeking further assistance from a professional or reinstalling your drivers.

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