How To ‘Reboot and Select Proper Boot Device’ in Windows 10


The Reboot and Select Proper Boot Device is a prevalent problem that haunts all the users of Windows, but to help the Windows, there are numerous solutions invented.

Fix: Reboot and Select Proper Boot Device

Why Reboot and Select Proper Boot Device error occurs?

  1. When a computer system’s BIOS has some problems finding the bootable drive, i.e., BIOS chip in the motherboard is not able to recognize the drive where the operating system is installed. When this error occurs, the keyboard stops functioning.
  2. Sometimes, the cable connection of the system’s primary storage device gets loose due to continuous, And this causes OS to drive to disconnect from the computer’s motherboard. In such cases, hard disk drive becomes unresponsive.
  3. Due to Virus attack, the operating system gets corrupted. And this corrupted operating system causes this error in the system.
  4. It may happen that damaged files enter the system while updating Windows or BIOS.
  5. Commonly this error pops up when the system tries to boot from an unreliable internet source.

Reboot and Select Proper Boot Device in Windows 10

There are many possibilities behind the occurrence of this errors. Similarly, there are many ways to fix this problem.

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Method 1 – Boot Order Needs to be Changed

Step 1 – Firstly, the computer should be turned off.

Step 2 – Secondly, boot the computer. This is done by pressing the power button.

Step 3 – Next, BIOS settings should be entered. It is done by using either F12, F2, ESC, or delete key.

(The key needs to be chosen, by reading the manual. As it depends on the brand of the computer. Or the exact key can also be found by Google search, asking for ways to enter bios, with the model number.)

Step 4 – In the BIOS setup utility, choose the boot option. Change the operating system drive to the primary boot device.

Step 5 – Finally, save the made changes and restart the computer.

Method 2 – Check If The Hard Disk Has Failed

As stated earlier, this issue may happen because the hard disk has failed. To see if this is the root of the caused error and to fix this follow the following ways:

Step 1 – For easy recovery essentials, download an ISO file.

Step 2 – The downloaded ISO file needs to be burnt. It could be either onto cd/dvd or USB.

Step 3 – Now, insert the media into the affected computer. Then, boot from the media.

Step 4 – Restart the computer.

Step 5 – Now, select an automated repair option. And click on continue.

Step 6 – After the completion of the automated repair, check if the hard disk drive is falling. If it is so, replaces it with the new one.

Method 3 – Set Primary Hard Drive As the Active One

This method includes the setting of the primary hard drive as the active one. Steps to follow:

Step 1 – First of all, the Windows installation disc is to be inserted.

Step 2 – After that, restart the computer. Then boot it from the inserted media.

Step 3 – Now, navigate to the system recovery option window. Select the option to troubleshoot.

Step 4 – Now, the Troubleshoot option will appear. Choose the advanced options.

Step 5 – From the advance option menu, choose a command.

Step 6 – At last, press enter, after typing diskpart.

Method 4 – Replacement of CMOS Battery

Another method to fix this error includes, replacement of CMOS battery found in circular shape inside the motherboard. Sometimes this battery gets damaged, so replacing this with the new one will be helpful.

Before adding the new battery, hold the computer’s power button for at least 10 seconds, to make sure that there is no residual charge left. There is a high chance that using this process, and the computer will regain.

Some computer systems have UEFI in place of BIOS. In these computers, the legacy mode can be the reason for this errors. To fix this, the steps are:

Step 1 – First of all, restart the computer.

Step 2 – Then, open the UFFI menu. It could be done by pressing either F2, F12, F8, or DEL key, depending on the model of the system.

Step 3 – Now, find the legacy option, and switch it off. This option can be found inside the security tab.

Step 4 – Before leaving, save the changes.

Step 5 – Again, restart the computer after exiting from the UFFI menu.

This problem can also be fixed by reinstalling Windows.

Reinstalling Windows is tested and tried the method, but many times it proved to be effective. Sometimes it may happen that the above said Solution are not working, then this is the option to fix.

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After completing it, it is advisable to clean the Windows registry. This ensures the cleaning of all damaged or corrupted files and reduces the threat of error in the future.


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