Login Back to PC after 0x0000007B – INACCESSIBLE_BOOT_DEVICE Error

windows_stop_0x0000007B

You may receive the following error code suddenly when you boot your Windows 11, 10, 8 & 7. The following error may stop your Windows from booting properly and you will make you feel helpless. In this article, I will guide you on how to fix this error and boot your PC in normal mode.
Error Message:

0x0000007B
INACCESSIBLE_BOOT_DEVICE

Most of the users claim that this error occurred after updating windows, installing a third-party driver, installing a game, or changing the system hardware. Whatever the reasons are, your main objective is to resolve this and login back to your PC.

What is INACCESSIBLE_BOOT_DEVICE Error and Why it occur?

The error INACCESSIBLE_BOOT_DEVICE means the Windows system is unable to load the boot driver. This is because when the boot device driver failed and is unable to initialize the driver. Most commonly this is because of a hard drive failure, file system corruption, and virus in the Windows boot sector. On the other hand, repartitioning the system partition, misconfigured bios settings, installing an unsupported disk controller, or incompatible disk hardware may also raise this problem.
In simple words, a boot device driver is responsible for loading windows OS and when this driver gets damaged, corrupted, or inaccessible due to some reasons, the windows failed to start and you will get a Blue Screen of Death error in Windows 10, 11 & 8.

How to Fix Stop Error Code 0x0000007B?

You may find a lot of information over the web to fix this stop error, but all the solution is not helpful for you and eventually, you will find yourself helpless. So, in this article, I will discuss only the helpful method that will surely allow you to login back into your Windows successfully.

Method 1: Repair using DriverEasy Repair Tool

If you can boot your PC, then you must run this DriverEasy Repair Tool to find and fix bugs in the operating system. Most of the time, this error happens because of outdated Windows OS, inaccessible or damaged drivers, installing outdated or corrupted drivers, etc. This tool fixes all the drivers and updates-related issues with just in a single click.

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If you can’t boot your PC then solve this problem using the following given methods and after booting your PC successfully, you must run this tool to repair damages.

Method 2: Just Make a Simple Reboot

A simple reboot may fix lots of PC problems easily. Did you reboot your PC by removing all the connected external devices? Just remove all the connected peripheral devices from the PC and then make a reboot to fix the problem.

Method 3: Remove recently installed hardware.

If you have recently installed hardware in your system, then remove it first and then try to boot windows. This hardware may be a PCI card, Graphics card, Audio card, Network card, USB 3.0, or Type C card, etc. After removing the card start your PC and check whether your problem is resolved or not.

Method 4: Change Controller Mode in BIOS

If you changed BIOS settings incorrectly then most probably you will get the same error. It means you have changed the controller mode to legacy, AHCI or IDE/Raid in BIOS. By selecting the right controller in BIOS or resetting the BIOS settings may fix this problem.
Some system installs Windows 10 & 11 using the RAID drivers including the IRST (Intel Rapid Storage Technology). SSD Performs better with AHCI controller. So, if you have recently changed the hard drive from SATA to SSD then you must select the right controller. If changing the controller doesn’t help you then reset the BIOS to its default settings.

How to change Controller Mode in BIOS
Warning: Changing SATA Controller Mode might cause 0x0000007B – INACCESSIBLE_BOOT_DEVICE Error so, if you have changed it after installing windows and getting the above error, you must change back the prior controller mode in BIOS. It is always advisable or recommended to change Controller Mode before installing Windows.
Step 1: Before going to change controller mode in BIOS, you need to know how to open BIOS in Windows 10, 11 or 8. You must check current controller mode in Windows OS.

Note: Different manufacturer has their own custom BIOS with different types of settings, so you don’t find the exact menu as below, try to find a similar menu item.

Step 2: Find one of the available menus in your BIOS.
  1. Go to Storage > Storage Option > SATA Emulation and change to the prior version.
  2. Go to Advanced > IDE Configuration and select Configure SATA as.
  3. Go to Advanced > SATA Configuration
    sata_mode_1
  4. Click on SATA Mode and select the actual Mode.
    sata_mode_2
  5. Press F10 to Save & Exit.

Method 5: Reset BIOS to Default Settings.

If changing controller mode doesn’t work for you then simply RESET BIOS to Default Settings.

Step 1: Open BIOS.
Step 2: Go to Exit > Load Setup Defaults (or similar item)

load_default_bios

Step 3: Click Enter to Select Default Settings and the Press F10 to Save & Exit.

Method 6: Run chkdsk and fixboot command

There might be a disk error or boot file error in your PC so the system couldn’t load the windows files on startup. Running chkdsk and fixboot command in the recovery console may fix this error easily.

Step 1: Make a bootable Windows USB drive. Here’s the guide to How to Make Bootable Windows 10 USB Drive.
Step 2: Open Windows 10 in Recovery Mode. Connect Windows 10 bootable USB drive to PC.

recovery_mode_command

Step 3: Select Troubleshoot > Advanced Option > Command Prompt.

use_a_device_option

Step 4: Run the following commands one by one and press Enter

chkdsk /F
BOOTREC /FIXMBR
BOOTREC /FIXBOOT
BOOTREC /RebuildBcd
fixboot

Method 7: Repair Windows 10 Installation

Repairing Windows 10 Installation will fix all the flaws of windows 10/11 and let you log in and works smoothly on the PC. This method requires a bootable Windows 10/11 USB drive.

Step 1: Insert Windows 10 USB Boot device in PC.
Step 2: Open BIOS Settings. To open BIOS settings, reboot your PC and when you see the manufacturer logo on the screen, continue pressing the F2 button. You must check which function key will work according to your PC because each manufacturer allows different keys to open BIOS. However, some keys are common and work with almost every manufacturer. If F2 doesn’t work for you then try F8, F10, F12, Esc, or Del buttons.
Step 3: Go to Boot Settings and change Boot Priority to USB Device from Hard Drive.

boot_priority

Step 4: Reboot your PC. Your PC will start the new installation process of Windows 10. Don’t panic and go with the guidelines. Click on the Next button to start the process.

install_windows

Step 5: In the next Windows, choose the Repair your computer option.

repair_pc

Step 6: Good! Now, wait for a few minutes to complete the repairing process. Upon completion, you will be able to boot your PC without the error 0x0000007B – INACCESSIBLE_BOOT_DEVICE.

Summary

In this article, I have discussed 7 special but genuine methods to fix 0x0000007B – INACCESSIBLE_BOOT_DEVICE error on your PC. Apart from this error, if you are not able to start your PC, this article might help you a lot to boot your PC.