It may be because the master boot record mbr file, boot configuration data bcd file missing or get corrupted which may be causing the issue. The efi partition is formatted under the fat32 system. Windows 10 inaccessible boot device error daves computers. Faulty hardware issue, software corruption or conflict, corrupt or bad driver, corrupt registry and improper windows shutdown. The current dell windows 10 media will fail to install on systems that are configured with both serial ata sata hard disk drives hdds and nonvolatile memory nvme high performance peripheral component interconnect express pcie solid state drives ssds there is a incompatibility between the current windows 10 recovery environment winre storage drivers and. Using dism from the recovery console, i can see that there were updates installed on the windows vm on 3112016. After running snappy driver installersdi and allowing it to upgrade the intel 8 seriesc220 sata controller drivers, the computer would no longer boot. Inaccessible boot device error how to fix the error in. When a computer is turned on, the bios picks an eligible, bootable hard drive and then calls code stored in the mbr at the start of that hard drive. You can then click on advanced options, troubleshoot, and then enter chkdsk fr in the command prompt. Faulty hardware or lose hard drive connection is found to be other leading cause to show boot device inaccessible in windows 10. Hard drive, namely the boot drive itself, has been corrupted, damaged or failed. Corrupted, outdated or inaccurately configured drivers. Check for the volume item that has fat32 in the fs column.
If automatic download doesnt work, navigate to your motherboard manufacturers website and update your motherboard software manually. How to fix inaccessible boot device error in windows 10. File system initialization might have failed because it did not recognize the data on the boot device. Select automatic and let windows download and install the latest driver for your hard drive.
Windows 2008 r2 2012 r2 bsod inaccessible boot device. Now, to update the driver, rightclick on the standard sata ahci controller. If the volume number of efi partition is 1, type the following command. The inaccessible boot disk is down to windows 2000 not recognising the. Luckily, i knew it was something that i had changed in the bios that ended up causing this problem. In my case, i was back to the dreaded inaccessible boot device blue screen of death bsod. The boot device driver might fail to initialize the boot device during io system initialization. If you remember your hardware manufacture, go to its official website, find and download the latest controller drivers like ide atasata. Click on the recovery option from the list and select restart now under the advanced startup option. When you encounter inaccessible boot device on windows 10 ssd, you can fix the problem either by uninstalling the graphic card driver or by rebuilding mbr via aomei partition assistant. When a certain driver malfunctions, like outdated, corrupted or incompatible with windows 10, problem arises, including the inaccessible boot device.
That mbr code in turn loads the bootsector from the active partition. These are usually driver, virus, or hardware issues. Expand the ide atasata controller in the device manager according to the driver that has been installed on you device s windows 10. If you have sata drives on your computer, you probably want to use advanced host controller interface ahci on your sata host controller. How to fix inaccessible boot device error on windows.
Inaccessible boot device in this case the solution was to use ahci mode instead of raid mode in bios. When i searched online for it, i found a few windows 7 and 8 users also encountered it in the past. Depending upon your pcs manufacturer, the menu options change. We are using ide for the disk and the following settings. Enable ahci mode in bios many users have reported that enabling ahci mode in bios has immediately fixed this inaccessible boot device error, and since it is also the recommended mode in which you should have your disk or ssd, it is. Inaccessible boot device on blue screen what it is. There look for ata atapi ide drivers and in ahci driver, right click and select update driver. Inaccessible boot device error in windows 10 microsoft community. Inaccessible boot device external hard drive several users.
Right click the window icon and select to run the command prompt in admin mode from among the various options. If the sata mode is set to ide then change it to ahci. Ive seen it maybe one or two times in the last 50 or so 7bs ive fixed. Stop 0x0000007b inaccessible boot device after converting dell server dsargent jun 23, 2007 5. The client removed the western digital hard drive from their laptop and investigated it, connecting the drive via usb adapter to another computer.
Change the cable connecting your boot drive to your. Hardware conflicts with the system updates and changes. It may be due to corrupted system files, missing mbr master boot record or bcd boot configuration data file, while windows 10 upgrade process. After you make this change, a device that is required to start the machine may require driverb. Choose the boot device as a uefi device if offered, skip the product key screen and choose your licensed version only if offered. Inaccessible boot device server 2016 fix based on the identified potential causes of inaccessible boot device error in windows server 2016 error, here are the fixes.
Then, the bootsector code loads the bootloader, which is responsible for loading the operating system. Faulty hardware or lose hard drive connection is found to be other leading. Make sure to change an x value with the letter of the mounted drive with. Suddenly, when we reboot the vm, it always goes to a bsod that says inaccessible boot device. Fix inaccessible boot device error in windows 7, 8, 10.
Inaccessible boot device, how to fix it yourself minitool. But, if you dont want to use these tools, follow the manual method. All the solutions suggested below involves booting windows server 2016 to automatic repair mode. Windows 10 version 1903 causing inaccessible boot device. To see the folder, you must display the hidden files and folders and disable the hide protected operating system files recommended option. You surely know how to change boot order, because you are able to boot from the stick, booting from a file is there. Hardware conflicts resulting from system updates or changes. If you are lucky, that installation might boot straight away. Its very rare that its due to problems with the boot loader phase. Fix inaccessible boot device in windows 7 and vista. Click repair your computer, then troubleshoot, and then command prompt. On a windows 8based computer, you install a thirdparty ataminiport driver and reboot, or, after you use the bios setup of a windows 8based computer to change the serial advanced technology attachment sata mode of the boot drive to use either the advanced host controller interface ahci specification or redundant array of independent. I expect that it executes and presents the smiley, with no difference. During io system initialization, the boot device driver might have failed to initialize the boot device typically a hard disk.
On second screen choose install now, then custom install, then at the drive selection screen delete all partitions down to unallocated space to get it cleanest, click next to let it create needed partitions and start. Insert recovery media and hit any key, then select boot manager to choose a new boot device to boot or recovery media. A few simple troubleshooting steps can tell you exactly which cause is most likely for an inaccessible boot device error. How to fix inaccessible boot device error on windows 10. Inaccessible boot device error on windows 10 windows report. According to the microsoft, if you install a thirdparty ataminiport driver and reboot or after you use the bios setup of a windows 8based computer to change the serial advanced technology attachment sata mode of the boot drive to use either the advanced host controller interface ahci specification or redundant array of independent disks. Once the sata ssd is unplugged, power the system back on again. If needed, change the bios settings to boot from the nvme m. For example, you replace the pci slot on an sas controller to which the boot up hard disk drive is attached. You can eliminate nearly every boot loader phase problem by just using a floppy to boot with. How to fix an inaccessible boot device error daves. Solved boot device missing how to fix an inaccessible. If youre trying to install windows or have finished installing windows and get this error, it could be caused by any of the below possibilities. The file is on your hard disk at \efi\boot\bootx64.
How to fix inaccessible boot device stop code 0x0000007b. Inaccessible boot device after hardware change ars. Troubleshooting inaccessible boot device error in windows 10. You see a blue screen of death bsod with the inaccessible boot drive error. If you have scsi or raid setup on your hard disk drives, it may be necessary to load the thirdparty drivers. How to fix the inaccessible boot device error in windows 10. Now, from the context menu, choose the option of update driver. Inaccessible boot device is one of the most common errors windows users. Whats more, you are able to solve no bootable device found in windows 10, mbr2gpt validation failed problems with the help of aomei partition assistant.