Solutions to Resolve Reboot and Select Proper Boot Device Error in Windows 10


It is never a pleasant experience to turn on a computer that does not boot into your operating system. When a computer says "reboot and selects proper boot device," it usually means the computer's basic input/output system (BIOS) cannot locate the boot device containing its operating system. The black screen error message "reboot and select proper boot device" occurs for many Windows 10/8/7 users. Various causes may lead to this error, such as corrupted system files, a failing hard drive, or a messed-up boot sequence. So, now, let's look at the various solutions to know how to solve reboot and select proper boot device


Reboot and Select Proper Boot Device


 

Steps to Solve "Reboot and Select Proper Boot Device" Error in Windows 10

Below is the list of the most effective ways to solve reboot issues and select boot devices in Windows 10. Follow them exactly for quick access to your operating system.

 

1.    Check the Power Cable Connecting Your Hard Drive Disk

When your power cable is broken, frayed, or connected improperly, the computer won't detect the hard drive. When the computer, likely, doesn't detect your hard drive, your hard drive isn't functioning. So, to check the power cable, follow the below steps.

 

·       First, shut down your PC and open it. 

·      Now, examine and check the power cable connecting your hard drive disk and motherboard to see if it is physically damaged or not connected properly.

·     When the connection appears to be working properly and you are still receiving the error, remove it from your computer to test it on another.

·         Replace the power cable with a new one if the error occurs on the test computer.

 

2.    Clean your RAM

Performing a RAM cleaning may fix the error if you have not done so since you purchased your computer. To clean your RAM, turn off your computer, pull the sideboard out of your tower/bottom of the laptop, and locate your RAM. Now, remove the RAM from their slots by unlocking the clamps and cleaning any dust off with a soft cloth. Now, place the RAM back in their spaces after being cleaned.

 

3.    Set BIOS to Best Defaults

Even though this solution is a long shot, not having your BIOS set to its defaults can sometimes cause instability. This instability may be the reason for the "reboot and select proper boot device Windows 10" error. You can access this by rebooting your computer launching your BIOS, and locating the option to "load optimal defaults." Once loaded, restart your computer.

 

4.    Disable/Enable Legacy Boot

It may be that the basic input/output system (BIOS) has a feature called legacy boot which can cause the "reboot and select proper boot device" error. If this is the case, you can enable or disable the legacy boot feature to solve the problem.

 

·         The initial step is to restart your computer and enter the BIOS.

·         Find the legacy boot option in your BIOS by going through all tabs and/or settings.

·         Upon finding it, disable it if it is enabled. If it is disabled, enable it.

·         Now, save the changes exit from the BIOS, and again restart your computer.

 

Therefore, the solutions above will resolve the issue. In case the issue still persists, you will need to update your SATA drivers using Safe Mode. If this doesn't work, you will need to replace your motherboard's CMOS battery since it may have errors. As an alternative, you may need to perform a fresh reinstall of Windows if you suspect that your operating system has been damaged, corrupted, or your hard drive is dead.


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