How to Fix Blue Screen of Death (BSOD) on Windows 10/11

Overview

The Blue Screen of Death (BSOD) is Windows' way of saying "something went wrong, and I have to stop". On Windows 10 and 11, the screen shows a stop code (e.g., `CRITICAL_PROCESS_DIED`, `MEMORY_MANAGEMENT`, `PAGE_FAULT_IN_NONPAGED_AREA`) along with a QR code.

BSODs are caused by hardware failures, driver issues, corrupted system files, or incompatible software — roughly in that order of frequency. The stop code is the key to diagnosis: write it down before rebooting, because Windows clears the screen quickly.

This guide walks through the systematic process to identify and fix BSODs that aren't from hardware failure.

Before you start

✓Note down the BSOD stop code (e.g., 0x0000007E)
✓Administrator access
✓Recent backup of important data

The fix

5-step guide

Read time: ~10-30 min

Check Recent Changes

Most BSODs are triggered by recent changes. Ask yourself:

Did you install new software in the last few days?
Did Windows install updates recently?
Did you connect new hardware (USB, monitor, printer)?
Was there a power outage or sudden shutdown?

If yes to any: try System Restore to a point before the change. Press Windows + R, type rstrui.exe, and follow the wizard.

Update or Roll Back Drivers

Driver issues cause ~40% of BSODs. Identify the culprit:

Open Device Manager (right-click Start → Device Manager).
Look for any device with a yellow warning icon — those are problem drivers.
Right-click the device → Update driver → Search automatically.
If a recent driver update caused the BSOD, instead choose Roll Back Driver under Properties → Driver tab.

For a comprehensive scan, Driver Easy can identify all outdated/corrupt drivers in one pass.

Recommended Tool

Driver Easy

freemium

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Run System File Checker and DISM

Corrupted system files cause many BSODs. Run both:

Open PowerShell (Admin).
Run System File Checker:

bashsfc /scannow

Test RAM with Windows Memory Diagnostic

Faulty RAM is a common BSOD cause, especially for MEMORY_MANAGEMENT and PAGE_FAULT_IN_NONPAGED_AREA codes.

Press Windows + R, type mdsched.exe, press Enter.
Choose Restart now and check for problems.
The PC will reboot and run a memory test (5-15 minutes).
After it completes, Windows boots back into your account and shows results in Event Viewer.

If RAM errors are detected, you'll need to replace the faulty stick.

Replacing RAM is hardware work — if you're not comfortable, contact a local repair shop or our remote help service for diagnosis.

Boot in Safe Mode and Investigate Further

If BSODs prevent normal boot, use Safe Mode:

From the boot screen, hold Shift while clicking Restart.
Choose Troubleshoot → Advanced options → Startup Settings → Restart.
Press 4 to boot into Safe Mode.

In Safe Mode, only essential drivers load. If BSODs don't occur in Safe Mode, you've narrowed it to a third-party driver or software. Uninstall recently added programs one at a time.

Still seeing Blue Screen of Death?

If the guide is not enough, describe the issue first. We will explain whether remote help is appropriate before any access is granted.

Talk to a tech

No automatic remote access.

DIY steps first
Permission before access
Hardware limits explained

FAQ

Common questions

What does the QR code on the BSOD do?

Scanning it takes you to Microsoft's troubleshooting page for that specific stop code. It's a starting point but generic — for actual fixes, use the methods above.

Should I worry about losing data from BSOD?

Single BSODs rarely cause data loss. Repeated BSODs can corrupt files. Always maintain backups, especially during BSOD troubleshooting.

Can BSOD damage my hardware?

BSODs themselves don't damage hardware — they protect it by stopping the system before damage occurs. However, the underlying cause (overheating, failing drive, bad RAM) can damage hardware over time.

Why do I get BSOD after Windows updates?

Update conflicts cause BSODs in ~10% of cases — usually with older drivers. Roll back the update via Settings → Update & Security → Recovery → Go back.

When should I just reinstall Windows?

If you've tried all software fixes and BSODs persist, a clean install often resolves persistent issues. Back up data first. Reinstall is a last resort but very effective.

Written by PCDoc Team

Tested on a real Windows machine on 2026-05-15. Found a mistake? Tell us.