Blue screen & error codes

Blue screen (or black screen) stop code: what it means

Got a blue or black screen with a stop code? What it means and safe steps: undo changes, update drivers, run SFC/DISM and memory tests.

Difficulty: Medium
Time: 20-60 min
Steps: 9
Updated: 2026-10-19

Sounds like this?

Blue or black screen with a sad face and 'Your device ran into a problem'
PC restarts on its own
A stop code like MEMORY_MANAGEMENT appears

Step by step

Photograph the screen or write down the stop code (for example IRQL_NOT_LESS_OR_EQUAL) and any file name listed under What failed.
Think about what changed: new hardware, a new driver, a Windows update, or new software. Undo that first.
Unplug non-essential USB devices and restart.
Update Windows: Settings › Windows Update › Check for updates.
Right-click Start › Device Manager. Look for yellow ! marks and update those drivers, especially graphics and network.
Run a system file check: open Terminal (Admin) and run sfc /scannow, then DISM /Online /Cleanup-Image /RestoreHealth.
Run Windows Memory Diagnostic from Start to test RAM.
Check free space on C: (aim for 10%+ free).
If crashes continue, start in Safe Mode. If Safe Mode is stable, the cause is usually a driver or app, not hardware.

Related error codes & messages

Quick answers

When should I stop and get professional help with "Blue screen (or black screen) stop code: what it means"?

Stop and get help if: Crashes happen several times a day or before Windows loads. Memory Diagnostic reports errors. The stop code mentions disk, storage, or 'INACCESSIBLE_BOOT_DEVICE'. The PC also overheats, beeps, or shuts off without a stop screen. Boise Computer Care can diagnose it for a $60 fee; call 208-996-3508.

How long does this fix take and how hard is it?

Plan on 20-60 min. Difficulty: Medium.

Is it safe to try this myself?

Mostly, if you follow these precautions: On Windows 11 24H2 and later the crash screen is black instead of blue. Same meaning. Back up important files now; repeated crashes can be a sign of a failing drive or memory. Don't download 'driver updater' or 'BSOD fixer' tools from ads.

Which error messages or codes does this guide cover?

MEMORY_MANAGEMENT, IRQL_NOT_LESS_OR_EQUAL, PAGE_FAULT_IN_NONPAGED_AREA, SYSTEM_SERVICE_EXCEPTION, KMODE_EXCEPTION_NOT_HANDLED, CRITICAL_PROCESS_DIED, 0x0000001A, 0x0000000A, 0x00000050.

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