How to Fix Blue Screen (BSOD) Errors on Windows 10 & 11

Blue Screen of Death (BSOD) errors are one of the most common — and most alarming — issues Windows users face. That sudden blue screen with a cryptic error code can feel catastrophic, but in most cases, the fix is straightforward.

What Causes Blue Screen Errors?

BSOD errors occur when Windows encounters a critical error it can't recover from. Common causes include:

Most Common BSOD Error Codes

IRQL_NOT_LESS_OR_EQUAL

This usually means a driver is trying to access memory it shouldn't. Update your drivers — especially graphics, network, and chipset drivers.

KERNEL_DATA_INPAGE_ERROR

This points to a problem reading data from your hard drive or SSD. Run chkdsk /f /r from an elevated Command Prompt to check for disk errors.

SYSTEM_SERVICE_EXCEPTION

Often caused by antivirus software or outdated drivers. Try booting into Safe Mode and uninstalling recently installed software.

CRITICAL_PROCESS_DIED

A critical Windows process has stopped. Run sfc /scannow in an elevated Command Prompt to repair system files.

How to Diagnose the Problem

1. **Check Event Viewer** — Open Event Viewer and look at the System log for errors around the time of the crash

2. **Run our diagnostic tool** — Our AI-powered analyzer examines your event logs and system configuration to pinpoint the exact cause

3. **Update drivers** — Use Device Manager to check for driver updates

4. **Run Windows Memory Diagnostic** — Type mdsched.exe in the Start menu to test your RAM

Prevention Tips

If you're still experiencing blue screens, try running our free diagnostic tool — it analyzes your system logs and identifies the specific driver or component causing the crash.