Inaccessible boot device Windows 10

What is error message ‘inaccessible boot device’ in Windows 10?

Inaccessible boot device is an error that usually occurs when the Windows operating system loses access to the system partition upon startup. When this occurs, the system usually shuts down to protect itself from possible corruption or loss of data.

 

How can you fix ‘inaccessible boot device’ in Windows 10?

Some of the solutions to this error include:

  • Reconnecting the hard disk drive (HDD) or solid state drive (SSD)
  • Checking the HDD or SSD for defects
  • Resetting the PC
  • Reinstalling Windows

 

Please see our in-depth walk-through solutions below.

Staff Asked on September 6, 2017 in Microsoft Windows.
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4 Solution(s)

Solution 1. Reconnect Hard disk drive (HDD) or Solid State Drive (SSD)

“Inaccessible boot device” in Windows 10 may be caused by the poor connection from your HDD or SSD to the motherboard or power supply.  Try to reconnect the cables in case they were attached poorly. Also, check your BIOS setting if it is booting to your primary (where Windows is installed) HDD or SSD. See instructions below.

  1. Reconnect  HDD or SSD to the motherboard.
  2. Turn on the computer.
    NOTE: Try to listen to the HDD. If there’s noise, please check Solution 3.
  3. Press Del to access BIOS. 

    RE: Windows 10 blue screen inaccessible boot device

  4. Go to Boot tab, select Boot device priority and select your bootable device.
    NOTE: Bootable device is where the Windows (OS)  is installed. If the bootable device is not detected by the BIOS, consider the HDD or SSD defective.
  5. Press F10 and save.
Staff Answered on September 6, 2017.
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Solution 2.  Check hard disk drive (HDD) or solid state drive (SSD) for defects

“Inaccessible boot device”  in Windows 10 may also be caused by defective HDD or SSD. Check your HDD and SSD for defects.  See steps below or watch it here on YouTube.

HDD

  1. Insert the Windows 10 installation CD/DVD or USB.
  2. A message will appear “Press any key to boot from CD or DVD”, press any key to boot from the Windows installation CD/DVD or USB.
  3. Select your language, time and keyboard, and click Next. 

    RE: Windows 10 blue screen inaccessible boot device

  4. Click Repair your computer.
  5. Click Troubleshoot ==> Advance Option ==> Command prompt. Type in chckdisk /r, then press enter, and wait until the process is finished.

    RE: Windows 10 blue screen inaccessible boot device

  6. If you encounter any error report such as the image above, consider replacing your HDD.
  7. If you have replaced your hard drive, a guide on how to install Windows 10 in Solution 4 might help.

SSD

For the SSD, let your computer standby in the BIOS for at least six hours so it can perform self-cleaning.

Staff Answered on September 6, 2017.
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Solution 3. Reset PC

“Inaccessible boot device” may also occur if your Windows 10 is damaged, has become unreliable, or has corrupt or missing files. Resetting your PC may fix the error. 

NOTE: Please reconnect the HDD where the Windows is installed and remove all secondary HDD and other storage devices such as USB storage device. Then, turn on the computer. If the error still persists, follow the instructions below.

  1. Insert the Windows 10 installation CD/DVD or USB.
  2. A message will appear “Press any key to boot from CD or DVD”, press any key to boot from the Windows installation CD/DVD or USB.

    RE: Windows 10 blue screen inaccessible boot device

  3. Select your language, time and keyboard, and click Next.
  4. Click Repair your computer.

    RE: Windows 10 blue screen inaccessible boot device

  5. Click Troubleshoot ==> Reset your PC ===> Remove Everything .
  6. Then, customize your Windows and input your other information.
Staff Answered on September 6, 2017.
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Solution 4. Reinstall Windows 

If “inaccessible boot device” in Windows 10 still persists even if all the components are in good condition, or you replaced a bad hard disk drive (HDD), please install new Windows.

YouTube video tutorial is here.

  1. Insert the Windows installation DVD or USB.
  2. A message will appear “Press any key to boot from CD or DVD”, press any key to boot from the Windows installation CD/DVD or USB.
  3. Select your language, time and keyboard, and click Next.
  4. Click Install Now.
  5. Click I accept the terms of the license, and then click Next.
  6. Click Custom (Advanced).
  7. Select the partition, and click Delete.
    NOTE: Delete all partition.

  8.  Select the Unallocated space and click Next.
    NOTE: 
    If you want to define the size, click new, set the size and then click Apply. 
  9. Click ok to confirm.
  10. Wait until the installation process is finished.
Staff Answered on October 5, 2017.
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