Summary:
If your Windows pops out message No Bootable Device error, there are some problems with your system. But do not worry about that, this article will show you how to fix no bootable device error.
What happened when your computer says No Bootable Device?
Many users have come across an error that says No bootable device when they have attempted to start their computer. It is an annoying issue. Usually, when your computer pops this message often means the computer operating system is not available to find the bootable hard disk, so it cannot start to boot. If the error can't be solved properly, it may not only stop you from booting up PC but also cause data loss. The reason for your computer shows "No bootable device" can be incorrect boot order, faulty MBR, hard drive or partition not detected, or more. But don't worry! Here are several fixes you should try:
How to fix no bootable device issue?
Method 1. Check or reset the boot order on your PC
An incorrect boot order can lead your computer to boot from an unbootable hard drive or device, and therefore you get a No bootable device error. So you should make sure your hard drive is the first of the boot order. To check your boot order:
1. Enter the BIOS. (You need to restart computer and press F2 or whatever key that computer prompts to enter BIOS, for example, you may need to press "Del" or F10 key to enter BIOS setup.)
2. Check the option labeled "Primary Hard Drive". Then move your Hard Drive to the top of the boot order list. (If it is "none", then the computer does not detect the connected hard drive.)
3. Press "Save" and restart your computer.
Method 2. Check all hardware
Shut off the computer and unplug power cable so that you can remove anything connected to the computer such as hard drive, USB drives, mouse, etc. and put back all hardware to see whether the problem can be solved. Many times, a loose connection with a hardware device can cause an error in the discussion. But, if all these devices are plugged well and still get the error, you need to keep reading the rest solutions.
Method 3. System Repair
Step 1. Insert Windows installation disc or bootable USB disk that contains installation files to the USB port of the computer and then restart. In this part, we use Window 7 installation DVD as an example.
Step 2. Change boot order inside BIOS to have the DVD boot first.
Step 3. After the disc loads, you need to select the language, time zone, and Keyboard or input method and click "Next". Then you can see the following screen where you should click "Repair your computer" on the bottom-left corner.
Step 4. Select one installation from listed choices after the computer finished scanning itself; just choose the most appropriate one from the list and continue. Sometimes a problem might be detected at the initial process and the system may also prompt whether to repair the problem automatically. You can let the system to repair or just select No.
Step 5. Try "Startup Repair" first. When you get the "System Recovery Options" interface, you can see a list of choices that can help you repair a damaged Windows 7. In general, the first option "Startup Repair" is able to fix many different startup issues automatically. If this option can't troubleshoot the "no bootable device" issue on your computer, you'll have to Command Prompt option to solve the problem manually.
Step 6. Enter command line "bootrec.exe /FixMbr" and press Enter in Command Prompt window. If it is executed successfully, you'll be greeted with "The operation completed successfully". That means MBR (Master Boot Record) has been repaired.
bootrec /fixmbr
bootrec /fixboot
bootrec /scanos
bootrec /rebuildbcd
Exit Command Prompt and restart your computer. If this method works for you, you will be able to get through the error now.
Method 4. Set the primary partition back as active
A primary partition is where the operating system is installed. A No bootable device error may occur when the primary partition of your hard drive is inactive due to some mistake in your computer. You should set it back as active to fix the issue. To do so:
1. Refer to the steps in method 2 to boot from your Windows installation media and open Command Prompt in the installation package.
2. In Command Prompt, type "diskpart" and press Enter. Then type list disk and press Enter.
3. In the list of the disk, type select disk 0 (here refers to the number of the disk where you have installed your system) and press Enter.
4. Type list partition and press Enter. Then in the list of partitions in this disk, type select partition 1 (here refers to the number of the System Reserved partition, where the boot loader is located. Usually it is the smaller primary partition) and press Enter.
5. Type active and press Enter.
6. The system partition is now set to active. Type exit and press Enter to exit diskpart and close Command Prompt. Then restart your computer and see if the error resolves.
Method 5: Check bad sectors for hard drive
If there is nothing wrong with the system or additional hardware devices, the problem may exist on the hard drive itself. The thing you should do is to completely check and make sure no problem or bad sectors exist on the hard drive where operating system installs. Since the computer can't boot for the moment, you can perform the following steps after connecting the hard drive to another computer.
Step 1. Click Computer icon from the desktop using the right mouse button and select "Open".
Step 2. Find and right-click on the drive letter representing the affected hard drive and select Properties.
Step 3. Select the "Tools" tab and click "Check Now". Then you can see two options: "Automatically fix file system errors" and "Scan for and attempt recovery of bad sectors". It is advised to check both in order to completely scan and repair errors on this drive.
Method 6. Reset your system
It is also possible that the corrupted files in your operating system cause the error. You can try resetting your system and see if this fixes the problem. To do so, you can use your Windows installation media to reinstall your operating system. If this method can help you, the error will no longer occur on your computer after the reinstallation.
How to recover lost data caused by fixing "No Bootable Device"？
If the problem is still unresolved, or if you lose important files while solving the problem, it is a very unhappy experience. When the computer fails to boot, you will try best to fix such as repair errors, restore or reinstall OS, format hard drive, etc. It can range in scope from a few corrupted files to everything on the computer, which can be catastrophic. How to rescue lost data caused by system issue, deletion, formatting or other errors?
Bitwar Data Recovery is a free and efficient tool to rely on and use in such data loss situations to completely and safely recover data. Only 3 simple steps will help you restore all lost data.
Steps to recover lost data with Bitwar Data Recovery
Simply download and install Bitwar Data Recovery by clicking on this button and follow the below steps to recover data.
Step 1. Launch the powerful software and select the partition or device where you want lost files back from and click Next.
Step 2. Choose a scan mode and then hit Next.
Step 3. Choose the exact types of files you want back, you can select all types if you have no ideas what kind of types need to choose. Then the program will start scan quickly.
Step 4. After the scan is complete, find the scanned out file and Double-click to preview. You can check the file in a magnifying window and even you can play video, audio or GIF image after clicked related file. It’s a powerful preview function helps you to shorten the recovery time. Then select what you need and click "Recover" to save the data back.
After these steps, the files have been back yet.
Conclusion:
If you are having no bootable device error on the computer, please don't worry about this, simply follow the above solutions to fix it or if the error caused the data loss, take a chance on Bitwar Data Recovery to help recover the lost data for you.
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