How to Fix Reboot and Select Proper Boot Device Error

Reboot and select proper boot device error is a common problem that could be fixed in many ways. It is important to know the cause of this error before fixing it. The moment you see a black screen on your computer, there are some problems with your operating system, or the BIOS is not loading correctly. However, though it causes panic in most of us, you do have to worry. It is because there are various ways to fix the error. Usually, you will find that your system does not function properly in the most unusual hours.

How to fix reboot and select proper boot device error

There may be some urgent work, and hence due to the black screen, you cannot get into the programs of your necessity. It is like harassment, where you find yourself in a situation unexplainable. Therefore, to uplift you from this difficult situation, the following are the ways that will guide you on how to fix the reboot and select the proper boot device error.  The Reboot and select proper boot device message to specify that your computer cannot find the Basic Input-Output device that contains the operating system. Hence, it will prompt you to restart the computer. However, after restarting your system, you may find an error message on your screen. It can be due to an error in your software or hardware.


How to Fix Reboot and Select Proper Boot Device Error

Following are some solutions on how to fix reboot and select the proper boot device error.

1. Check the Power Cable of Your Hard Disk:

Your hard disk is one of the prime reasons for the Reboot and proper boot device error message. Your hard disk stores the operating system; hence, if it is not connected correctly, your system will not function. Sometimes, you will also find that the power cable is damaged or broken, so your system cannot detect the hard disk. The steps to restore your hard drive are the following:

  • Shut down your computer.
  • Check the power cable attached from your hard disk to the motherboard.
  • Check to find any damage to the power cable.
  • If you do not find any unusual, plug out the power cable and check it with another system.
  • If you notice the same error, it is time to replace your power cable with a new one.

However, if you do not find any error in the other system, you must look for other issues.

2. Clean Your RAM:

Many times, your system is not functioning because of the RAM. You may get an error message if you have not cleaned your system’s RAM for ages. There is no need to get the services of a hardware specialist as you can perform the activity on your own.

  • Shut down your computer and open one side by unscrewing the screws.
  • Find the RAM on the motherboard.
  • Carefully unlock the RAM from the motherboard.
  • Clean the dust with a soft cloth or a brush.
  • Reposition them in the same place and clamp them.
  • Reboot your system and find out if you are getting the error message.

3. Check the Boot Drive of Your System:

One of the reasons for receiving the error message can be due to the Boot Drive of your system.

  • Shut down your computer and reboot it.
  • Press the post-screen key to get into the BIOS of your system. The post-screen key can be any function key or the DEL button, and you need to check your manual to know which key is actual.
  • Once you are on the screen of the BIOS, you will notice a list of devices connected to your systems, like hard disk drives, DVD drives, fans, and similar devices.
  • You need to check whether the hard disk is showing any connection. If you find that it is not listed, you need to shut down your computer.
  • Change the SATA slot or another SATA cable to connect your hard disk to the motherboard.
  • Reboot your system and find out if you are getting the same error message.
  • If you are facing the same issue, it may be due to your BOOT system being corrupted or damaged.

See Also: Why Laptop Shuts Down Randomly Not Overheating

4. Check the Sequence of the Boot Order in the BIOS:

If the boot order sequence is improper, you may get an error message on the screen, and it will ask you to reboot the system. Hence, you need to make sure that you keep the hard drive as the first boot order.

  • Press the post-screen key to enter the BIOS system of your computer.
  • Select the ‘Boot’ tab on the screen.
  • If you want to find the boot sequence, click on the ‘Advanced’ option.
  • Find the order of the boot sequence.
  • If the boot disk is not in the correct sequence, you need to change it.
  • You must drag and drop the devices to get the correct sequence of the boot order.
  • Save the changes and reboot your computer.
  • Check to see if your system is functioning correctly.

5. Disable or Enable Legacy Boot:

Sometimes your Basic Input-Output device may come with a legacy boot. It may be one of the reasons that your computer is unable to function correctly. You can either disable or enable it to eliminate the error message. Following are the steps to fix the error message.

  • Reboot your system and enter BIOS using the post-screen key.
  • Find the ‘Legacy Boot’ option on the BIOS screen. You may have to move into various options to find the legacy boot.
  • Once you get the ‘Legacy Boot’ option, enable it if you find the option disabled, or disable it, if the ‘Legacy Boot’ option is enabled.
  • Save the changes and exit from the BIOS.
  • Reboot your system to find out if there are any error messages.

6. Use the Optimal Default Option in BIOS:

If the setting of your BIOS is not proper, you will get the error message on your screen as soon as you boot the system. You need to enter your computer’s BIOS to get your system to function correctly. Select the option ‘Load optimal defaults’ and click on Save and exit. Reboot your system and find if you still get the message ‘Reboot and select proper boot device.’ If the problem persists, you have to look for other options.

7. Fixing the Reboot and Selecting the Proper Boot Device Error Message:

One of the most valuable ways to fix the error message is using the Command Prompt to activate or deactivate the partition. If you set your primary hard drive as active, you can get a proper solution for not receiving the error message. However, to act, you need to have the recovery disk. Also, it would be best if you changed the boot order sequence in BIOS to perform the activity.

  • Once you run the recovery disk, you need to follow the instructions till you get the option of repairing, restoring, or recovering your computer.
  • After clicking on any one of the options, you will find the ‘System recovery option.’
  • Choose the command prompt, type in ‘disk part,’ and press enter.
  • You will get a list of the various disks installed on your computer.
  • Select 0 or any disk that does not have a partition and press Enter.
  • Type in the command prompt list partition one and press Enter.
  • Type in ‘active’ and press enter.
  • You will get a notification from the dispart stating that the partition has been created.
  • Type exit and come out of the command prompt.
  • Reboot your system and check if your computer is functioning correctly.

8. Fix All the Boot Files of Windows:

If you have tried all the solutions to fix the boot error message but with no result, do not become helpless. It is because there is one more solution that can finally fix the errors in your system so that you can start your work. Hence, the problem may be with your Windows Boot files if the error is not in your BIOS. You need to repair all the Boot files of Windows as they may be corrupted. However, to start the repairing process of the Boot files of Windows, you need the Windows media installation disc or the repair disc. Following are the steps that will guide you through the process.

  • Insert the Windows media installation disc or the repair disc into your computer’s CD or DVD drive and let it run.
  • You will see the ‘Windows Set up’ screen on the computer.
  • Click on the ‘repair your computer option.
  • Open the command prompt and type in bootrec or fixboot and press enter. Type in bootrec or rebuild BCD and press enter in the following line.
  • Once the commands are given, type ‘exit’ and come out of the application.
  • Reboot your system and find out if the error message is still displaying.

Also Read: Android Connected to Wifi but No Internet


The article covers the steps to fix the reboot and select the proper boot device error. The boot error message is a common issue that we face often. You can try the simple steps to restore your computer. However, if you still face issues with the error message, it is best to re-install the operating system on your computer. It may be that the software or some related files are corrupted and damaged, and you may have to get the services of a professional to restore your computer.

Reboot and select proper boot device error is a common problem that many Windows users may encounter. It usually happens when your computer is not able to find the operating system on your hard drive. The error message may be different, but the solution is the same.