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IT Support & Hardware · Foundational

Stop Error

A critical Windows error that halts the system with a stop code, commonly called a blue screen of death (BSOD).

Definition

Stop errors are caused by faulty drivers, hardware failures (RAM, storage), overheating, or corrupted system files. The stop code, such as IRQL_NOT_LESS_OR_EQUAL or CRITICAL_PROCESS_DIED, guides troubleshooting. Minidump files in C:\Windows\Minidump record details. Windows 11 24H2 and later show a redesigned black screen.

Example

Repeated MEMORY_MANAGEMENT stop errors lead to testing RAM with Windows Memory Diagnostic.

Exam tip

Write down the stop code; recent driver or hardware changes are the first suspects.

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