INACCESSIBLE_BOOT_DEVICE

What is 0x0000007B?

The 0x0000007B error is categorized as a critical-severity Windows operating system issue that can significantly impact your PC's stability. Windows lost access to the root system partition during startup. When experiencing the INACCESSIBLE_BOOT_DEVICE fault, users often report sudden system crashes, unresponsive behavior, or a blue screen of death (BSOD). In most diagnostic scenarios, this problem is directly triggered by underlying hardware or software complications such as change disk controller mode in bios (ide -> ahci/raid), corrupt storage driver and corrupted partition table. To permanently resolve the 0x0000007B issue and prevent further system degradation, it is highly recommended to follow our step-by-step troubleshooting guide below, ensuring your Windows operating system components are functioning correctly.

Common Causes

• Change disk controller mode in BIOS (IDE -> AHCI/RAID)
• Corrupt storage driver
• Corrupted partition table

Step-by-Step Fix Guide

• 1
  Change the SATA mode in the BIOS back to the original

  Applying the first fix (Change the SATA mode in the BIOS back to the original) addresses the most common root cause of 0x0000007B and restores baseline functionality.

• 2
  Run Startup Repair

  If the problem persists, proceeding with the remaining steps ensures all edge cases related to windows instability are covered.

• 3
  Try booting into safe mode

Commands & Diagnostics