How to Fix Inaccessible Boot Device Windows 10 [Blue Screen of Death]

One of the most common errors that Windows 10 users encounter is the Inaccessible Boot Device error. The “Blue Screen of Death” (BSOD) error often occurs after a Windows 10 upgrade or reset, and it appears during Windows startup. What causes the Inaccessible boot device windows 10 problem, exactly? How can you know whether it’s having an impact on you? And what are your options for resolving the issue? Continue reading to learn more.

Meaning of Inaccessible Boot Device Error (error code 0x0000007b)

Windows updates itself most of the time. However, this automatic update is likely to cause a significant issue. This error message indicates that Windows was unable to reach the system partition during startup. The problem forced Windows to restart all over again. What causes the error “inaccessible boot device”?

Inaccessible Boot Device Windows 10  Error Causes

Common causes of the Inaccessible boot device windows 10 problem include various issues arising from an improper upgrade or rollback of the operating system to a previous state. The error could be a result:

  • Malware corrupting the system.
  • Installing or updating the wrong driver.
  • Incorrect AHCI mode activation for the SATA interface in already installed Windows by using BIOS.
  • Changes to the drive’s logical structure
  • System files and registry data have been corrupted or failed to install Windows update
  • Components of the hard disc have failed.

Note: The issues listed above may cause additional system problems, such as the MSVCP110.dll missing error, Internal Power Error, and more, in addition to the Inaccessible Boot Device Error. It’s essential to resolve inaccessible boot devices to avoid a more severe system failure in the future.

What is Inaccessible Boot Device Windows 10

How to fix Inaccessible boot device windows error

Follow these steps to resolve this error:

Analyze for Malware Infection

Malware may have infected your machine, resulting in the cause Inaccessible boot device windows 10  error message. As follows, do a full system scan with the Windows Defender Antivirus application to check for malware on your Windows 10 computer.

By pressing the Windows + I key, go to Settings > Update & Security > Windows Security. Go to Virus & threat protection. Antivirus Windows Defender detects viruses and reports them to you. Viruses and malware on your Windows 10 PC can be removed by following on-screen directions. Now Restart your computer to see if the problem has got resolved.

Using Windows 10 to Update Device Drivers

Faulty or corrupted device drivers also cause inaccessible Boot Device errors. Your drivers may need to be updated if you follow these procedures.

In Device Manager, open the device category you want to update and click it. When you right-click on the driver, choose Update Driver. After that, click on the button that says “Automatically search for drivers.”

Windows will begin searching for the most recent drivers to use. As an alternative, if you’re having trouble finding drivers, you can pick the ‘Search for updated drivers’ on Windows Update. All of the available updates will get displayed next. Windows 10 users can install the latest updates and drivers by clicking Install Now.

Toggle AHCI Mode Value in BIOS  

Numerous people have reported that adjusting the AHCI mode in the BIOS to “Enabled” can fix the boot device problem. Manufacturers use different BIOS menus, so you may want to consult your motherboard’s manual for instructions. Consequently, this troubleshooting technique does not have a universally applicable explanation.

You can access the BIOS by pressing the Delete key, Escape key, or Function key during bootup as a rule of thumb. AHCI Mode can get found by going to the Advanced Options menu and selecting it. The AHCI mode parameter should get set to “Enabled.

Make Sure There Are No Corrupted Files

Corrupted files on a hard drive will likely cause Inaccessible boot device windows 10  error message to appear. Using the Command Prompt, you can fix corrupted files if you feel that’s the cause of the problem. You will not be able to do this action unless you are an administrator. Using the Windows button, type cmd into the search box. You can run it by right-clicking it and choosing Run as administrator.

Press Enter after typing in /fr/r in the same Command Prompt application. Allow a few moments for the app to process your input and display the results. After entering the letter Y, press “Enter.” If Windows is not bootable, type the below command in the recovery console to perform.

chkdsk/r C

Other Troubleshooting Alternatives

If you’re still having trouble with the inaccessible boot device problem, you may want to seek professional help. However, you still have a few possibilities.

A loose cable could be the cause of the inaccessible boot device problem. As a result, please turn off your computer, disconnect it, open the case, and check that everything is working correctly.

Check for malfunctioning hardware chances are, you may have faulty RAM; check to see if the RAM is functioning correctly. Then look for other vital components.

Wrap Up

Despite the Inaccessible boot device windows 10 error being annoying, many Windows 10 users claim that it is not a complex problem to fix. To fix the Windows 10 unavailable boot device problem, you have a few options. Choose a way that you can carry out without making things worse for yourself or others. You should not try Some procedures if you lack the necessary skills. There are several things to keep in mind when working with BIOS.

Use the device’s user manual to work with the hardware, which you can find on the manufacturer’s website. In this way, you can prevent inflicting physical damage to the computer when you open it. Otherwise, if you are unsure about a process, ask a professional or a more informed friend for assistance.


More on What is Windows Rollback? Know it before you install Windows 11. 



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