If your computer pops out error message "No bootable devices found", no need lớn worry about that, since this article shows how to lớn fix no bootable device error via 6 different methods in Windows PC.

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Why does PC say no bootable device?

How to lớn fix no bootable device issue properly on Windows computer? First, let"s find out the possible causes of this problem. Here are some major reasons you can take a look at.

▶An incorrect boot order.

▶System partition is not phối as active.

▶Internal hard disk is corrupted due khổng lồ disk errors/bad sectors.

▶Computer"s boot hard disk MBR sector is damaged.

How to fix no bootable device on Windows 10/8/7?

Now, you can try the below-listed methods khổng lồ check if the "no bootable device found" problem can be fixed.

▌Method 1. Remove sầu & connect bachồng all hardware components

At first, you can completely power off your computer, remove sầu all hardware devices, then put them baông xã all properly. That can help check whether the BIOS did not detect the system hard drive due to loose connection và led to "no bootable device" issue. If this does not work for your situation, proceed to lớn the next method.

▌Method 2. Chechồng boot order

An incorrect boot order could mislead your computer lớn boot from an unbootable hard drive, then the "no bootable device found" will occur. So make sure your system hard drive sầu is in the first place of the boot order.

Step 1. Restart your computer & press a specific key (Del, F2, F10…) to enter BIOS cài đặt.

Step 2. Access the "Boot" tab using the right arrow keys on your keyboard. And move your system hard drive to the top of the boot order menu.


▌Method 3. Rephối primary partition as active

The partition where the operating system is installed is called as primary partition. It needs to be phối as active for an OS boot success. So if it is phối as inactive by mistake, the "no boot device found" issue will be triggered. Thus please mix it bachồng as active sầu.

Step 1. Insert the Windows installation DVD into your computer and boot from it. Select the language and keyboard layout, và cliông xã on "Repair your computer".

Step 2. If you are using Windows 10 và 8 installation DVD, cliông xã "Troubleshoot" và then "Comm& 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 & cliông xã "Next". Select "Commvà Prompt" on the subsequent window.

Step 3. In the elevated Comm& Prompt window, write the following commands one by one and press "Enter" afterward.

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.


▌Method 4. Cheông xã internal hard disk status

If the internal hard disk has some disk errors, the "no bootable device found" error might pop out during Windows startup. You can check its status by CHKDSK.exe cộ tool. To vày so, you can refer to lớn the method 3 to open Commvà Prompt window. Then exexinh tươi commvà "chkdsk c: /f /x /r", which will check errors on the C drive (the Windows operating system is usually installed on this drive) and fix them if possible.


Then connect this bootable USB drive to your computer with "no bootable devices found" issue, & boot computer from the bootable truyền thông. When you log in, you will be in the main interface of AOMEI Partition Assistant Standard. Now you can rebuild MBR within three steps.

Step 1. Right-click the system hard disk, and select "Rebuild MBR".


Step 2. Choose an appropriate MBR type for your operating system, and clichồng "OK".


Step 3. Hit on "Apply" và "Proceed" to commit the pending operation.


Furthermore, you can use this freeware to lớn kiểm tra system disk status: right click the system disk & select "Surface Test" and wait for the process lớn be finished.


Moreover, AOMEI Partition Assistant Standard also supports checking và fix partition errors: right clichồng the system drive and select "Advanced"> "Cheông xã Partition", choose the first way khổng lồ both kiểm tra và repair partition errors….


▌Method 6. Recover deleted boot partition

If you deleted your system partition by mistake và BIOS cannot find the boot drive, either, Windows will also fail to find the boot device. In this case, you can try AOMEI Partition Assistant Professional. It allows you lớn create a bootable media và recover deleted boot partition without loading up OS.

Step 1. Refer to the last method lớn make a bootable USB drive sầu via the AOMEI Partition Assistant Pro. Boot the computer with no bootable device found from the created bootable media.

Step 2. In the main interface of AOMEI Partition Assistant Pro, cliông chồng "All Tools" >"Partition Recovery Wizard"


Step 3. Choose a proper method lớn tìm kiếm for the deleted boot partition and cliông chồng "Next".


Step 4. Choose the system disk và clichồng "Next".


Step 5. Then you can choose the deleted system drive & cliông xã on "Proceed" to recover the lost boot partition.

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Final words

As for how lớn fix no bootable device in Dell, Acer, HPhường và other computers with Windows 10/8/7 installed, these 6 methods are reported to be effective. I sincerely hope you will get a proper method according to your special situation. Apart from the above sầu functions, AOMEI Partition Assistant also comes with many other great features: migrate OS to SSD, clone hard disk to another hard disk, extover system drive without reboot, etc.