As the name suggests, INACCESSIBLE BOOT DEVICE Blue screen of death Reflects a certain problem with the specified boot device installed by Windows. When this error occurs, it means that the Windows file system tried to read the boot device and failed. In most cases, this means that the boot device failed to initialize.
Or, when the bootloader tries to access the specified boot device, it does not recognize its data as a file system structure. Simply put, the boot process did not find the bootable system described by the boot configuration data. At the highest level possible, this error indicates that there is no known boot device or that the problem PC cannot be accessed.
Common causes of blue screens of inaccessible boot devices
In most cases, the INACCESSIBLE BOOT DEVICE error occurs because the boot device fails or cannot be read. During input/output (I/O) initialization, the boot device driver may not be able to initialize the boot device (hard drive or SSD, maybe even one of them) The best solid state drive). Other potential causes include:
- The file system initialization failed to recognize the data on the boot device.
- The device parameters of the boot device are damaged, damaged, or invalid.
- If an error occurs during the initial system installation, the operating system may be installed on an unsupported disk controller, or a valid driver for a non-standard disk controller may be invalid or unavailable.
By far, the most common situation in which this error occurs involves changes to some kind of Windows startup environment. Repartitioning the boot/system drive, changing the boot configuration data (BDC), BIOS configuration changes, or installing a new or different disk controller can all trigger this stop code, which uses the value 0X0000007B (aka 0X7B). This error code is discussed in more detail in the Microsoft Docs page INACCESSIBLE_BOOT_DEVICE.
Recover from an inaccessible boot device error
Sometimes, this error will occur as a one-time failure. If this happens, some kind of temporary error will interfere with a startup, but Windows will resume the next time it restarts. If this happens on one of your PCs, make sure to use some method for image backup to restore from bootable media when the problem recurs.I use Macrium reflection free Perform daily image backup; the program’s bootable Rescue Media on the USB flash drive provides backup boot, and can restore the latest image backup to my boot/system disk at any time.
In fact, the bootable rescue media also includes a “fix Windows startup problems” option, which I have used many times to fix startup problems. It is good at repairing startup errors that may pop up when editing or changing the startup menu or startup configuration data. The screenshot below describes the access to the facility and is included in the useful Macrium Knowledge Base article (50168).
Microsoft’s repair suggestions for INACCESSIBLE BOOT DEVICE also include the following suggestions:
- Revert recent hardware changes: If you have recently added or changed system hardware (especially disk drives or related drivers or drive controllers), please delete them from the system. Usually, this will solve the problem immediately, because the boot drive sequence may be affected after such a change. If this solves the problem, you will need to change the configuration to resolve potential IRQ or I/O port conflicts in order for all components to work properly.
- Undo BIOS changes: If you incorrectly reset the boot order or drive priority, restoring the previous settings will usually set them correctly. For example, when the controller mode is changed from traditional to AHCI, or from RAID to AHCI (or vice versa) in the BIOS, this stop code may pop up.See our article How to enter your BIOS Help enter the menu.
- Check storage device compatibility: If you add a new storage device or controller, you must check to make sure it is compatible with Windows (see Windows 10 specifications Details). If you add a controller, make sure that the driver is compatible with your version of Windows. It may be a good idea to try to re-download from the manufacturer or OEM to ensure that the driver is not damaged or damaged.
INACCESSIBLE BOOT DEVICE wrong bottom line
In most cases, the INACCESSIBLE BOOT DEVICE error will be resolved when you undo recent system changes. However, in a few cases, you may not be able to make Windows recognize the boot device through any of the above fixes. If this happens, you have no choice but to perform a clean clean installation of your specific Windows version (see our article on how to do this) Repair installation of Windows). If this does not work, your drive may be physically damaged.
If you cannot get the new drive or controller to work, even with such a clean installation, you may have to give up the new drive or controller. In my 30 years of using Windows, this has never happened to me, but occasionally someone will see something like this on the Internet. Through trial and error, and using known, good, and compatible hardware components, you should be able to put together a working Windows configuration even if you encounter such problems.