![]() ![]() If you are using Windows 10 and 8 installation DVD, click "Troubleshoot" and then "Command Prompt". Select the language and keyboard layout, and click on "Repair your computer". Insert the Windows installation DVD into your computer and boot from it. So if it is set as inactive by mistake, the "no boot device found" issue will be triggered. It needs to be set as active for an OS boot success. The partition where the operating system is installed is called as primary partition. And move your system hard drive to the top of the boot order list. Access the "Boot" tab using the right arrow keys on your keyboard. Restart your computer and press a specific key (Del, F2, F10…) to enter BIOS setup. So make sure your system hard drive is in the first place of the boot order. Check boot orderĪn incorrect boot order could mislead your computer to boot from an unbootable hard drive, then the "no bootable device found" will occur. If this does not work for your situation, proceed to the next method. That can help check whether the BIOS did not detect the system hard drive due to loose connection and led to "no bootable device" issue. Remove and connect back all hardware componentsĪt first, you can completely power off your computer, remove all hardware devices, then put them back all properly. Remove and connect back all hardware components Now, you can try the below-listed methods to check if the "no bootable device found" problem can be fixed. How to fix no bootable device on Windows 10, 8, 7, and 11 So, "how to fix no bootable device found" issue, you can try the following troubleshooting steps. Using the "bootrec" command in the Windows Recovery Environment, you can attempt to repair or rebuild the MBR, which can often fix the problem and allow the computer to boot properly. If the MBR sector becomes damaged or corrupted, the computer won't be able to locate the operating system and will display the "No bootable device" error. ![]() The Master Boot Record (MBR) is a crucial component of the disk that contains the information about the computer's partitions and the code to start the boot process. ▶ Computer's boot hard disk MBR sector is damaged. Fixing these disk errors can restore the functionality of the operating system and resolve the "No bootable device" problem. ![]() By running the "chkdsk" (Check Disk) command in the Windows Recovery Environment, you can scan the disk for errors and attempt to repair them. ![]() This corruption can occur due to sudden power outages, physical damage to the disk, or age-related wear and tear. ▶ Internal hard disk is corrupted due to disk errors/bad sectors.ĭisk errors and bad sectors on the internal hard disk can prevent the operating system from being read or accessed correctly. By setting the system partition as active using the "diskpart" command in the Windows Recovery Environment, you can instruct the computer where to look for the boot files, resolving the issue. If this partition is not set as active, the computer won't know where to find the necessary boot files, leading to the "No bootable device" error. The system partition is a specific partition on the hard disk that contains the essential files needed to start the operating system. By adjusting the boot order in the BIOS/UEFI settings, you can ensure the computer checks the correct device first and allows the operating system to load properly. If the boot order is incorrect, the computer might be trying to boot from a non-bootable device, such as a USB drive or a CD/DVD, before attempting to boot from the internal hard disk where the operating system is installed. The boot order determines the sequence in which the computer looks for a bootable operating system. This can happen for several reasons, and here are some common causes: When a PC displays the error message "No bootable device," it means that the computer is unable to find a valid operating system to load and start up from the storage device (e.g., hard drive, solid-state drive, or external storage). It means BIOS cannot find or locate the boot device or the boot files on the boot device are incorrect. The “no bootable device found” error is actually reported by BIOS. BIOS is a program in computers used to load the operating system and execute the boot operation. What does it mean by "no bootable device"?Ī bootable device is a kind of storage hardware, such as hard drive, USB flash drive floppy disk drive, DVD, CD-ROM drive, which contains necessary boot files and drivers for loading the operating system. ![]()
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