How To Fix Inaccessible Boot Device Error in Windows 10

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It’s likely that you could run into inaccessible boot device error during computer startup. When you see such error on a blue screen, you shouldn’t get into panic. What are the right things to do?

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According to the Google search results and also according to discussions from the Microsoft’s community, it’s not a new problem for users to encounter the Inaccessible Boot Device error (sometimes also displayed as 0x0000007B Blue Screen Stop error).

INACCESSIBLE_BOOT_DEVICE is a type of ‘Blue Screen of Death’error, and in this article we’ll show you how to recover the data stored on your hard drive and fix this error using a MiniTool power data recovery tool.

In certain cases, Windows 10 can’t access the system partition due to the issues described and analyzed in detail further in this article.

There can be multiple reasons for Inaccessible Boot Device Stop error

Reasons for Inaccessible Boot Device Stop can be:

  • Missing, corrupted, or misbehaving filter drivers that are related to the storage stack.
  • File system corruption.
  • Changes to the storage controller mode or settings in the BIOS.
  • Using a different storage controller over the default driver from Windows.
  • Moving the hard disk to a different computer that has a separate controller.
  • A faulty motherboard or storage controller, or faulty hardware.
  • Failure of the TrustedInstaller service to commit newly installed updates because of Component-Based Store corruptions.
  • Corrupted files in the Boot partition.

If you find your PC can’t boot after BIOS update or any other technical issue, recover data from the unbootable disk first to prevent damage caused by potential data loss. When your data backup is made, you can try to repair the inaccessible boot device yourself.

DISCLAIMER: If not sure how to recover the data from your hard drive, or if you suspect that there is a risk to damage the hardware or corrupt data, please seek a qualified assistance

Data Recovery for Inaccessible Boot Device in Windows 10

The entire data recovery process contains 3 steps.

Step one: find a safe and reliable data recovery tool and choose a proper edition for your case.

Step two: make a bootable USB disk or CD/DVD disc.

Step three: boot computer with the disk created in the previous stage and use it to recover data.

This method requires you to make a bootable USB disk or CD/DVD disc. As we already mentioned, in this article we will be using a MiniTool power data recovery software to illustrate the entire process of data recovery. You can download this software directly from the manufacturer’s site (a free version also exists, but the Snap-in WinPE Bootable Builder function exists in a commercial version only and you will need to purchase a licence). If you have this software available, follow then to the next steps to see how to recover data to restore the previous state and fix Windows 10 INACCESSIBLE_BOOT_DEVICE error.

With MiniTool, you will need the snap-in WinPE Bootable Builder to create a bootable disk that is later used to recover data from the inaccessible disk.

Step 1:

Connect a USB flash drive to a working computer or insert a CD/DVD that you want to use as bootable disk.

Click on the Bootable Media button at the bottom left corner to open MiniTool Media Builder.

Select WinPE-based media with MiniTool plug-in.

Choose to create a bootable CD/DVD, USB flash drive, or build an .iso image.

Choose Yes in the Build boot disk window to confirm or choose a storage location for the .iso image file click Save.

Wait for the building process to complete and click Finish.

Properly remove the disk from the current computer.

Step 2: Boot Your PC to Recover Data

How to boot your PC when running into stop 0x0000007b error (or Inaccessibe_Boot_Device error)? The steps are:

1: connect the bootable USB flash drive or CD/DVD to your PC with inaccessible boot device BSOD problem.

2: restart your PC and press the certain button before the Windows logo is displayed to enter the BIOS Setup Utility. Which button to press should be displayed briefly on the screen after switching the computer on.

3: modify the boot sequence to make computer boot from the disk you made. Then, exit and save changes.

4: wait for the countdown to end or click OK button to continue in both screen resolution changing window and MiniTool Power Data Recovery launching window.

5: click the first option (displayed below) to launch the data recovery software.

6: select an option ‘This PC’from the left-hand panel and specify the drive containing your needed data from the right.

7: click Scan to detect files in that drive. Then, browse the search result and pick out the data you need.

8: click Save and choose another drive to store the files waiting to be recovered. At last, click OK to confirm your selection.

9: wait for the recovery to complete.

Please be advised that you can use the trial edition to recover data from a working PC if you want to test the performance of Power Data Recovery.

Fix: Inaccessible Boot Device Windows 10

Here we present two possible fixes for this problem.

Solution 1. Boot System in Safe Mode

If you encountered the INACCESSIBLE_BOOT_DEVICE error while trying to boot to Windows 10, you can choose to boot the system to Safe Mode.

  1. Go to Settings Update security Recovery Advanced Startup Restart now.
  2. Your PC will automatically boot into another Startup Settings screen; here, press F4 to initiate the reboot into Safe Mode. You may also press F5 to boot into Safe Mode with networking.
  3. When in Safe mode, use built-in Windows tools to scan and check the health of your hard drive and the entire system.

Solution 2. Preform a Clean Installation of Operating System

If all the above recommended solutions are all not useful for your case, you can also choose to perform a clean installation of Windows 10, preferably using a more stable (more recent) version of this operating system.

Conclusion

Hopefully the steps described above helped you to fix the Inaccessible Boot Device error. If needed, more details about methods described here can be found in this article. If the problem persists, ask professionals for help.


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