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Zorluk: OrtaTroubleshooting Windows OS Startup and Boot Errors

A desktop computer running Windows 10 suddenly fails to boot after a user resets the BIOS/UEFI settings to factory defaults. Upon powering on the system, Windows attempts to load but crashes immediately with the Stop Error code INACCESSIBLE_BOOT_DEVICE. Which of the following is the most likely cause of this error, and what action should the technician take FIRST?

  1. The BIOS/UEFI SATA controller mode reverted to IDE or RAID mode instead of AHCI; change the SATA mode back to AHCI in BIOS/UEFI settings.Cevap
  2. B
    The Boot Configuration Data (BCD) store is corrupted; boot into WinRE and execute bootrec /rebuildbcd.
  3. C
    The Master Boot Record (MBR) partition table is damaged; run bootrec /fixmbr from the Command Prompt in WinRE.
  4. D
    Critical core system files are corrupted; run sfc /scannow /offbootdir=C:\ /offwindir=C:\Windows in WinRE.

Cevap

The BIOS/UEFI SATA controller mode reverted to IDE or RAID mode instead of AHCI; change the SATA mode back to AHCI in BIOS/UEFI settings.
When BIOS/UEFI settings are reset to factory defaults, the SATA mode frequently reverts from AHCI to IDE or RAID mode. Because Windows relies on the AHCI driver initialized during installation, changing the hardware controller interface prevents the OS from mounting the boot volume, resulting in an INACCESSIBLE_BOOT_DEVICE stop code. Reverting the BIOS setting back to AHCI resolves the issue immediately without software repair.

Adım Adım Çözüm

1
Analyze the boot error symptom and recent system change.
The symptom is INACCESSIBLE_BOOT_DEVICE occurring immediately after resetting BIOS/UEFI to factory defaults.
When BIOS/UEFI is reset, storage controller settings (SATA mode) often default to RAID or IDE mode. Windows was installed using the AHCI AHCI driver; changing the controller mode prevents Windows from finding the boot device driver.
2
Identify the first non-destructive corrective step.
Re-enter BIOS/UEFI setup and change the storage configuration / SATA mode back to AHCI.
Restoring the original SATA controller mode enables the OS to successfully load the existing storage drivers and boot normally.

Anahtar Kavram

SATA Controller Mode Mismatch during Windows Boot
Tahmini Süre:1m 30s
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