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Error 0x0000007B

How to Fix INACCESSIBLE_BOOT_DEVICE BSOD (0x0000007B)

Fix time: 20 mins Difficulty: Hard 0 views Updated: July 2026

Fix inaccessible storage controller boot loop errors in Windows.

Symptoms

  • Blue Screen of Death showing INACCESSIBLE_BOOT_DEVICE
  • Boot loops on startup

Common Causes

  • SATA controller mode mismatch (AHCI vs IDE/RAID)
  • Corrupted boot sector entries

Step-by-Step Solutions

Method 1: Toggle SATA Mode in BIOS

If you changed motherboard configuration, BIOS settings might default to RAID instead of AHCI.

  1. Restart PC and spam Delete or F2 keys to enter BIOS/UEFI.
  2. Find SATA Configuration/Onboard Devices.
  3. Change mode from RAID/IDE to AHCI (or vice versa).
  4. Save and Exit BIOS.

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Frequently Asked Questions

Yes, booting into Safe Mode once registers the correct drivers in registry.