How To Fix No boot device found

 

 

Fix No boot device found  Windows 10 problem

No boot device found or No bootable device found is a common error that can occur when trying to start your Windows 10 computer. There are a number of potential causes for this error.

Mean of No bootable device found.

This message means that your computer could not find a healthy boot device. This problem can occur if the files needed to start the computer cannot be found.

A bootable device is any piece of hardware that contains or can read the files needed to start a computer. A hard disk, CD-ROM drive, DVD drive, and USB thumb drive are considered bootable devices.

Why does Windows 10 display the error message No bootable devices found

Your computer's boot sequence is in error.

Your bootable installation is not recognized by your machine.

Your bootable devices are damaged or corrupted.

It's not active on your Windows 10 system partition.

Your BIOS or CMOS settings are incorrect.

Your device's boot disk MBR sector is damaged.

 

Follow the steps given below to resolve this No boot device found issue.

Method 1- Remove and connect back all hardware components

You can first turn off your computer, remove all hardware devices, then put them back all properly. That can help check whether the BIOS did not detect the system hard drive due to a loose connection and led to no bootable device issue. If this doesn't solve your problem, move on to the next method.

 

Method 2- Reset the primary partition as active

The primary partition is the partition where the operating system is installed. To start the operating system successfully, it must be set to active. If it is accidentally set to disable, it will bring up the No boot device found the issue. So, please enable it again.

Step 1: Boot your PC up using the Windows installation DVD. Click Repair your computer, then Language and Keyboard Layout to make your selections.

Step 2. If you are using Windows 10 and 8 installation DVD, click Troubleshoot and then Command Prompt. If you are using Windows 7 installation DVD, in the System Recovery Options screen, select the first choice Use recovery tools that can help…, Windows 7 OS, and click "Next". Select Command Prompt on the subsequent window.

Step 3: Type the following commands one at a time in the elevated Command Prompt window and then hit "Enter."

lit disk

select disk 0: 0 is the disk number of the system hard disk.

list partition

select partition 1: 1 represents the number of your system

partition.

Active

 

Method 3 - Check the internal hard disk status

During Windows starts, the no bootable device found problem may appear if the internal hard disk has some disk errors. By using the CHKDSK.exe tool, you can determine its state. You can achieve this by using method 2 to open the Command Prompt window. The Windows operating system is typically installed on the C drive, therefore run the command "chkdsk c: /f /x /r" to check for faults and, if necessary, rectify them.

 

Method 4 - Check for corrupted files using SFC

You can also use the SFC commands to scan and fix corrupt files.

First, open a command prompt window and enter the following command. Change C and D to the relevant drive letters for the system-reserved partition and your current Windows installation.

sfc /scannow /offbootdir=C:\  /offwindir=D:\Windows

Press Enter to begin running the command. Exit once the process is complete, then restart your computer.

 

 

Method 4 - Repair corrupted MBR

Windows 10 may not have a bootable device due to a corrupted MBR. You can fix the MBR in this case by taking the following actions:

Insert the Windows installation media into your computer and boot from it.

When you see the "Install now" window, choose the language and location, and then click "Repair your computer."

Select Troubleshoot and then Command Prompt on the Advanced options screen.

Enter each of the following command lines in the Command Prompt. Type "y" and press Enter if you are asked if you want to add a new installation to the boot list.

 bootrec /fixmbr

 bootrec /fixboot

 bootrec /scanos

 bootrec /rebuildbcd

Restart your computer after quitting Command Prompt.

After following the above steps, I think your No boot device found the problem is solved.