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Blue screen (BSOD) fix, step by step

Windows crashed to a blue screen? Tell us when it happens and the stop code. You get safe steps one at a time, and we tell you when it is a hardware fault for a technician. Nothing here erases your files.

How it works

Tell us when it happens and the stop code on the blue screen.

Safe steps one at a time. Nothing here erases your files.

Does this apply to me?

Blue screen fix step by step

Didn't catch the stop code?

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  1. Click Start, type reliability and open View reliability history.
  2. Click the day with a red X and the line Windows stopped working (or Shut down unexpectedly).
  3. Open View technical details. The number after BugCheck or Problem signature is the code, for example 0x0000001a = MEMORY_MANAGEMENT.
  4. For a technician: the crash files are in C:\Windows\Minidump. Copy them to a USB stick.

Common stop codes

Stop codeNumberWhat it usually means
MEMORY_MANAGEMENT0x1AWindows found its memory in a state that should not happen. Often the RAM.
IRQL_NOT_LESS_OR_EQUAL0xAA driver or Windows touched memory it should not. A driver, or the RAM.
PAGE_FAULT_IN_NONPAGED_AREA0x50Windows read memory that was not there. The RAM, a driver or the drive.
SYSTEM_SERVICE_EXCEPTION0x3BA crash inside a Windows service. A driver, or the RAM.
KMODE_EXCEPTION_NOT_HANDLED0x1EA driver or Windows hit an error it could not handle. A driver, or the RAM.
CRITICAL_PROCESS_DIED0xEFA process Windows needs stopped. Damaged Windows files or the drive.
INACCESSIBLE_BOOT_DEVICE0x7BWindows lost its own drive while starting. Storage mode, an update or the drive.
NTFS_FILE_SYSTEM0x24The file system on the drive has a problem. The drive, or the RAM.
UNEXPECTED_STORE_EXCEPTION0x154The memory store hit an error. Very often the drive (SSD).
WHEA_UNCORRECTABLE_ERROR0x124The hardware itself reported an error. CPU, RAM, heat or overclocking.
CLOCK_WATCHDOG_TIMEOUT0x101One CPU core stopped answering. CPU, overclocking or the BIOS.
DPC_WATCHDOG_VIOLATION0x133A driver took too long. Often the storage driver or SSD firmware.
DRIVER_IRQL_NOT_LESS_OR_EQUAL0xD1A driver touched memory it should not. The driver named on the screen.
DRIVER_POWER_STATE_FAILURE0x9FA driver failed going into or out of sleep. Drivers or the BIOS.
KERNEL_SECURITY_CHECK_FAILURE0x139Windows found damaged data inside itself. A driver, or the RAM.
VIDEO_TDR_FAILURE0x116The graphics chip stopped answering. Graphics driver, heat or the graphics chip.

A different stop code every time is usually the RAM, not Windows.

Still blue screens? Post the stop code, the laptop model and what you tried on the NoPowerFix forum and a technician will answer.

Ask on the NoPowerFix forum

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