My computer blue screens every time I turn it on — what do I do first?

Boot into Windows Recovery Environment by pressing F11 or F8 at startup. Go to Troubleshoot → Advanced Options → Command Prompt and run 'sfc /scannow' and 'chkdsk C: /f /r'. If the drive is healthy and SFC finds no errors, try Startup Repair from the same Advanced Options menu. If nothing works, boot from a Windows USB and perform a repair installation.

Why does my computer blue screen when playing games?

Gaming BSODs are almost always caused by GPU driver issues, overheating, or insufficient power. Update or cleanly reinstall your GPU drivers using DDU. Check GPU and CPU temperatures with HWMonitor or MSI Afterburner while gaming — GPU should stay below 90°C, CPU below 95°C. Ensure your PSU wattage is sufficient for your GPU. Also test RAM with MemTest86, as memory errors become apparent under gaming load.

What does the MEMORY_MANAGEMENT blue screen (Stop Code 0x0000001A) mean and how do I fix it?

Stop Code MEMORY_MANAGEMENT (0x0000001A) indicates Windows detected a serious memory management error, most often caused by faulty RAM, incompatible RAM sticks, or RAM running at an unsupported XMP/EXPO speed. Run Windows Memory Diagnostic immediately (mdsched.exe), then follow up with MemTest86 for thorough testing. If errors are confirmed, reseat RAM sticks, try one stick at a time, and replace any defective modules.

My computer blue screens when I plug in a USB device — how do I fix this?

This is typically caused by a corrupt or outdated USB or chipset driver. Open Device Manager → Universal Serial Bus controllers and update all USB drivers. Also visit your motherboard manufacturer's website and download the latest chipset drivers. If a specific USB device causes the crash, test it on another PC to rule out a faulty device. Disable USB selective suspend in Power Options as a temporary workaround.

My computer blue screened and now won't boot at all — is my data safe?

In most cases, a BSOD does not cause data loss — Windows was protecting itself by stopping before corruption spread. Boot from a Windows USB, go to Repair → Advanced Options → Command Prompt, and run 'chkdsk C: /f /r' to check disk health. If the drive is healthy, perform a Startup Repair. If the drive is failing (CHKDSK reports bad sectors), connect it as an external drive to another PC to recover your files before replacing it.

Computer Blue Screen (BSOD) Fix: Memory Management, Startup Crashes, Game Freezes & More

Fix computer blue screen errors on Windows & Mac. Step-by-step BSOD troubleshooting for memory, USB, startup, and gaming crashes. Works for all PC brands.

Last updated: March 1, 2026

Last verified: March 1, 2026

2,038 words

Key Takeaways

Root Cause 1: Faulty or incompatible RAM triggers MEMORY_MANAGEMENT (0x0000001A) and PAGE_FAULT_IN_NONPAGED_AREA BSODs — run Windows Memory Diagnostic or MemTest86 to confirm.
Root Cause 2: Corrupt or outdated drivers (GPU, USB, chipset) cause blue screens on startup, during gaming, and when plugging in USB devices — update or roll back drivers via Device Manager.
Root Cause 3: Damaged system files or a failing hard drive produce recurring BSODs at boot — use sfc /scannow, DISM, and CHKDSK to detect and repair corruption.
Quick Fix Summary: Boot into Safe Mode, run SFC and DISM repair commands, update all drivers, check RAM with MemTest86, scan the disk with CHKDSK, and review Event Viewer for the exact stop code before replacing hardware.

BSOD Fix Approaches Compared
Method	When to Use	Time	Risk
sfc /scannow + DISM	Corrupt system files, recurring BSODs after updates	15-30 min	Low
Driver rollback / update	BSOD after new hardware, GPU crash during gaming, USB blue screen	10-20 min	Low
Windows Memory Diagnostic / MemTest86	MEMORY_MANAGEMENT 0x1A, random BSODs, BSOD on startup	30 min – 8 hrs	Low
CHKDSK /r /f	BSOD after disk error, blue screen every time you turn on the PC	30-120 min	Low
System Restore / Reset This PC	Cannot identify cause, constant blue screening, unbootable system	30-90 min	Medium
RAM reseating / replacement	MemTest86 errors confirmed, all software fixes failed	30 min	Low-Medium
Clean Windows reinstall	All other methods exhausted, drive healthy, BSOD persists	60-120 min	High (data loss)

Understanding the Blue Screen of Death (BSOD)

A Blue Screen of Death (BSOD) — officially a Stop Error — occurs when Windows detects a fatal condition from which it cannot safely recover. The screen displays a stop code, a QR code, and a brief description. Common stop codes include:

MEMORY_MANAGEMENT (0x0000001A) — RAM corruption or bad memory pages
PAGE_FAULT_IN_NONPAGED_AREA (0x00000050) — invalid memory reference
IRQL_NOT_LESS_OR_EQUAL (0x0000000A) — driver accessing forbidden memory
SYSTEM_SERVICE_EXCEPTION (0x0000003B) — driver or system service fault
CRITICAL_PROCESS_DIED (0x000000EF) — essential Windows process terminated
KERNEL_SECURITY_CHECK_FAILURE (0x00000139) — data corruption detected by kernel
DPC_WATCHDOG_VIOLATION (0x00000133) — system unresponsive, often GPU/SSD driver
WHEA_UNCORRECTABLE_ERROR (0x00000124) — hardware-level CPU or memory error

Mac computers display a spinning wheel or a grey/blue screen, which has different causes covered at the end of this guide.

Step 1: Record the Stop Code

Before fixing anything, read and write down the exact stop code shown on the blue screen. If the PC restarts too quickly:

Go to Settings → System → About → Advanced System Settings → Startup and Recovery → Settings.
Uncheck "Automatically restart" under System Failure.
Set Write debugging information to Small memory dump (256 KB).
Click OK. The next BSOD will freeze the screen so you can read the code.

Dump files are saved to C:\Windows\Minidump\. You can open them with WinDbg (Windows Debugger) from the Microsoft Store.

Step 2: Boot into Safe Mode

If your computer blue screened and won't boot normally:

Power on and immediately press F8 (older Windows) or hold Shift while clicking Restart from the sign-in screen.
Go to Troubleshoot → Advanced Options → Startup Settings → Restart.
Press 4 for Safe Mode or 5 for Safe Mode with Networking.

Safe Mode loads only essential drivers. If the BSOD stops in Safe Mode, a third-party driver is the cause.

Step 3: Repair System Files (SFC and DISM)

Open Command Prompt as Administrator and run:

sfc /scannow

Wait for the scan to complete. If it reports errors it could not fix, run DISM to repair the Windows image store:

DISM /Online /Cleanup-Image /CheckHealth
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth

After DISM completes, run sfc /scannow again and restart.

Step 4: Update or Roll Back Drivers

Computer blue screen when plugging in a USB device → update or reinstall USB and chipset drivers. Computer blue screens when playing games → update or roll back GPU drivers.

Press Win + X → Device Manager.
Expand the relevant category (Display adapters, Universal Serial Bus controllers, etc.).
Right-click the device → Update driver or Properties → Driver → Roll Back Driver.
For NVIDIA GPUs, use DDU (Display Driver Uninstaller) in Safe Mode for a clean uninstall, then install the latest driver from nvidia.com.
For AMD GPUs, use AMD Cleanup Utility before reinstalling.

Step 5: Check RAM with Windows Memory Diagnostic

Press Win + R, type mdsched.exe, press Enter.
Choose Restart now and check for problems.
Windows will run two passes and report errors on next login.

For more thorough testing, use MemTest86 (bootable USB, runs outside Windows) for at least 2 full passes. Any errors mean one or more RAM sticks are faulty.

If errors are found:

Power off and remove all but one RAM stick.
Test each stick individually to identify the bad one.
Replace the defective stick with a compatible replacement.

Step 6: Check the Hard Drive or SSD

chkdsk C: /f /r /x

If Windows asks to schedule the scan on next reboot, type Y and restart. CHKDSK will scan for bad sectors and attempt repair. For SSDs, also check manufacturer health tools (Samsung Magician, Crucial Storage Executive, CrystalDiskInfo).

Step 7: Check Event Viewer for Crash Details

Press Win + R, type eventvwr.msc.
Navigate to Windows Logs → System.
Filter by Critical and Error events around the time of the BSOD.
Look for Kernel-Power (Event ID 41), disk errors (Event ID 7), or driver errors.

Step 8: Use System Restore

If BSODs started after a specific update or software installation:

Boot into Safe Mode.
Press Win + R, type rstrui.exe.
Select a restore point from before the blue screens began.
Follow the wizard to restore.

Step 9: Reset or Reinstall Windows

If all steps above fail:

Settings → Update & Security → Recovery → Reset this PC.
Choose Keep my files for a soft reset or Remove everything for a full reinstall.
Alternatively, boot from a Windows 10/11 USB and perform a clean installation.

Mac Computer Blue / Grey Screen Fix

Mac users who see a persistent blue or grey screen at startup should:

Force restart: Hold Power for 10 seconds.
Reset NVRAM: Hold Option + Command + P + R at startup for 20 seconds.
Boot into Safe Mode: Hold Shift at startup (Intel) or hold Power until startup options appear (Apple Silicon).
Run First Aid in Disk Utility from macOS Recovery (Command + R at boot).
Reinstall macOS from Recovery if First Aid finds unrepairable errors.

Apple-branded or Gateway, Dell, HP desktop computers all follow the same Windows BSOD troubleshooting steps above — the brand does not change the diagnosis procedure.

Gateway and Older Desktop-Specific Notes

Gateway and other older desktop computers may display BSODs related to legacy BIOS settings. Enter BIOS (usually Del or F2 at boot) and:

Disable Fast Boot if enabled.
Ensure SATA mode matches your OS installation (AHCI for modern drives).
Check that RAM speed (XMP/EXPO profiles) is set correctly for your sticks.

Frequently Asked Questions

powershell

# ============================================================
# Windows BSOD Diagnostic & Repair Script
# Run PowerShell as Administrator
# ============================================================

# Step 1: Disable automatic restart on BSOD so you can read the stop code
Write-Host "[1] Disabling auto-restart on BSOD..."
Set-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\CrashControl' -Name 'AutoReboot' -Value 0

# Step 2: Check Windows System File integrity
Write-Host "[2] Running System File Checker..."
sfc /scannow

# Step 3: Repair Windows image with DISM
Write-Host "[3] Running DISM Health Restore..."
DISM /Online /Cleanup-Image /RestoreHealth

# Step 4: Schedule CHKDSK on C: drive at next reboot
Write-Host "[4] Scheduling CHKDSK for next reboot..."
echo y | chkdsk C: /f /r /x

# Step 5: Check disk SMART status via WMI
Write-Host "[5] Reading disk SMART status..."
Get-WmiObject -Namespace root\wmi -Class MSStorageDriver_FailurePredictStatus | Select-Object InstanceName, PredictFailure, Reason

# Step 6: Export last 20 critical/error system events to a log file
Write-Host "[6] Exporting recent critical system events..."
$events = Get-WinEvent -LogName System -MaxEvents 500 | Where-Object { $_.Level -le 2 } | Select-Object -First 20
$events | Format-List TimeCreated, Id, LevelDisplayName, Message | Out-File "$env:USERPROFILE\Desktop\BSOD_Events.txt"
Write-Host "Event log saved to Desktop as BSOD_Events.txt"

# Step 7: List recently installed drivers (potential BSOD causes)
Write-Host "[7] Recent driver installs (last 7 days)..."
Get-WinEvent -LogName System | Where-Object { $_.Id -eq 7036 -and $_.TimeCreated -gt (Get-Date).AddDays(-7) } | Select-Object TimeCreated, Message | Format-Table -AutoSize

# Step 8: List minidump files for analysis
Write-Host "[8] Available minidump crash files..."
$dumpPath = "C:\Windows\Minidump"
if (Test-Path $dumpPath) {
    Get-ChildItem $dumpPath -Filter *.dmp | Sort-Object LastWriteTime -Descending | Select-Object Name, LastWriteTime, @{Name='SizeMB';Expression={[math]::Round($_.Length/1MB,2)}}
} else {
    Write-Host "No minidump folder found. Enable small memory dumps in System Properties."
}

# Step 9: Check current RAM info
Write-Host "[9] RAM Information..."
Get-WmiObject Win32_PhysicalMemory | Select-Object Manufacturer, PartNumber, Capacity, Speed, MemoryType | Format-Table -AutoSize

# Step 10: Launch Windows Memory Diagnostic
Write-Host "[10] Launching Windows Memory Diagnostic (will reboot)..."
# Uncomment the line below to actually schedule the memory test:
# Start-Process mdsched.exe

Write-Host ""
Write-Host "=== Diagnostic complete. Review BSOD_Events.txt on your Desktop. ==="
Write-Host "=== Next: Open WinDbg or upload .dmp files to https://www.osronline.com for analysis. ==="

Error Medic Editorial

The Error Medic Editorial team is composed of senior DevOps engineers, SREs, and Windows system administrators with 10+ years of experience diagnosing operating system crashes, kernel errors, and hardware failures across enterprise and consumer environments. Our guides are tested against real hardware fault scenarios and verified against official Microsoft, Apple, and hardware vendor documentation.

Sources

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