Why does my computer restart by itself or show a blue screen?



Short Answer: A Blue Screen of Death (BSOD) means Windows encountered a critical error — usually bad drivers, faulty RAM, overheating, or a failing hard drive.

Detailed: BSODs are Windows's last-ditch safety measure. Common error codes and their meaning:

Error codeWhat it meansLikely fix
CRITICAL_PROCESS_DIEDWindows system file corruptedRun sfc /scannow in Command Prompt
MEMORY_MANAGEMENTRAM problemRun Windows Memory Diagnostic
IRQL_NOT_LESS_OR_EQUALBad driver or faulty hardwareUpdate drivers, check for overheating
PAGE_FAULT_IN_NONPAGED_AREARAM or hard drive issueTest RAM, check hard drive health
SYSTEM_SERVICE_EXCEPTIONUsually a graphics driverUpdate GPU drivers (NVIDIA/AMD/Intel)

Quick diagnosis steps:

  1. Note the error code — it's at the bottom of the blue screen

  2. Search the code on your phone (e.g., "IRQL_NOT_LESS_OR_EQUAL fix")

  3. Check Windows Event Viewer (search "Event Viewer" → Windows Logs → System, look for red "Critical" errors)

  4. Test your RAM (search "Windows Memory Diagnostic" and restart)

Pro tip: If you get a BSOD and then the computer won't boot at all, your hard drive may be failing. Stop using it and back up data immediately.

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