How To Fix “Reboot And Select Proper Boot Device” Problem?

Discussion in 'Windows Know Base' started by securityhope, Apr 1, 2017.

  1. securityhope

    securityhope Administrator Staff Member

    Aug 3, 2016
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    Reboot and Select Proper Boot Device – Explained With Solution

    “Reboot And Select Proper Boot Device” is a BIOS Error message and it only occurs when your computer system’s BIOS is having some problem to find the System’s Drive or maybe some other Bootable Devices.


    As it’s a BIOS Error, which means you can get this error message on any Operating System (like Windows 7 or Windows 10) and in any computer devices, which can be your Laptop or maybe your Desktop PC.

    #Quick Tips:
    • In case, if you are getting this error while booting your bootable USB flash drive then it’s possible that the software what you use to make your pendrive bootable isn’t working on your computer. Just use some different one in order to boot that USB.
    • In case, you made new build for yourself or bought a new Computer for yourself and having this problem in that PC, then it’s quite possible that your computer or laptop don’t have any operating system installed in it. And yes, it also happens a lot when you installed a new Hard Drive or SSD into your computer.
    • If you having this problem randomly, or maybe your hard drive isn’t detected by the BIOS then it’s quite possible that your HDD got dead or having some problem in it.
    Just continue to troubleshoot the error:

    What Is “Reboot And Select Proper Boot Device” Means?

    Mainly there is a chip soldered on your PC’s Motherboard called the “BIOS Chip”, and that chip is actually responsible for starting your Computer System, mainly from the beginning

    In case If you don’t know, your Operating System is installed in your Computer’s Hard Disk Drive or a Solid State Drive (which depends on your PC) and that BIOS Chip is the one, who start the Operating System from your HDD/SSD and makes it running by using the Boot Volume.

    And By showing the error name “Reboot and select proper boot device” or “Insert boot media in selected boot device and press a key” your BIOS is just trying to say, that it isn’t able to recognize your Computer’s Operating System Drive.

    In case, if you are having this problem on a computer where not a single drive is connected to the computer’s main motherboard, then now I think you should need to connect one, and then install a proper Operating System in it.

    Or otherwise, your computer’s screen will always show that error message on the POST display.
    Just continue to read if you do have an OS (Operating System) installed in your system’s drive and still having this problem;

    Why Do We Continuously Seeing This Error, Again And Again?

    Mainly, this error messeage shows right after on yoru computers starstup and sometimes, it just freeze your computer and keyboard your stops working and the same thing happens again and again whenevery time you starts your PC.

    And just like I said, this error occurred when we remove or disconnect our OS Drive from the Computer’s Mainboard, but sometimes it’s also possible that this error occurs, even when you didn’t touch our Systems Drive.

    Yes, it’s possible because sometimes our System’s Primary Storage Device cable connection get loose automatically due to long aging, and your HDD or SSD starts become not responding.
    Or maybe it’s also possible that your Computer’s BIOS, automatically get reset too!!

    Which can make your System’s BIOS to forget their Boot Selection Setting, causing not able to boot the main System’s Drive, mainly the one where your OS is installed.

    In case if you don’t know about the Boot Selection Setting, then actually it’s a BIOS Setting Menu where we mainly select and arranges the Storage Drives which is connected to our computer, and tells BIOS to boot which particular bootable device at first or last.

    Boot means Startup in computer’s language;
    And there is one more reason for this error to shows up on your computer’s screen even when your System’s Drive or BIOS is working perfectly.

    And actually, this one is the top most possible reason why you are getting this error and that reason is, the corrupted Operating System of your computer, or the corrupted Boot Volume of your Operating System.

    and there are a lot of driffernt reson which can make yoru windows corrupted like a bad Windows or BIOS update or maybe a virus attack;

    Any thing can be possibel but the thing is, in any condition, you can fix your Computer or Laptop;
    So let’s see what is going to happen to your computer after following the ‘Troubleshooting Guide’ given below?

    #First Thing First

    Just like I said, mainly when our computer’s starts to operate, right after when you press the power button, it actually starts to scan every storage device which is connected to the computer.


    When it’s find anything bootable connected to your mainboard besides your main System’s Drive, like something connected through the USB, then it’s also quite possible that your computer changed the boot sequence itself, and starts to showing this Error Message on your screen.

    So, just make sure you do disconnect everything connected to your Computer’s USB Ports. Mainly the External Hard Drive, Pen Drive or any other kind of USB Disc Drive.
    If problem not solved, just continue;

    #Troubleshooting System’s Drive

    If the above trick won’t works for you then now it’s totally your Computer System’s Drive related problem and right now it’s very important to troubleshoot your Computer’s OS Drive, in order to make things back to work.

    So, the first thing which I wanted to you to do is to check your Computer’s Hard Disk Drive or maybe Solid State Drive is connected properly to your computer or not.

    And you can easily do that by
    checking the Storage Device Connection Status in the computer’s BIOS, and that will definitely ensure you about the drive is working or disconnected.

    To open your laptops or desktops BIOS Menu, you’ll need to hit the Del or F2 key on the keyboard again and again right after when you start your Computer System.

    In case, If your computer is Powered ON right now, then now you’ll need to turn it OFF and then again turn it ON to do the Del or F2 key pressing procedure thing.

    You can only do that while when you see the first black background type screen appears on your computer’s screen, right after when it’s Powered ON.

    It’s also possible that your computer doesn’t open the BIOS Setup Screen even after hitting the Del or F2 key again and again on the keyboard.

    It happens most of the times when your computer is having its own and some different predefined key to go to the BIOS Menu.

    But the great thing is, you can actually check that predefined key on your computer’s start screen as shown in the picture given below.


    After when your BIOS opens up, just go to the “Main Setting” or “Standard CMOS Features” or maybe some other BIOS option which can show you your all connected bootable devices like your system’s hard disk drive or an SSD.

    You’ll find it easily because you just need to explore your BIOS Menu;


    @What To Do – If Your Hard Disk or SSD Isn’t Listed In Bios (Skip This Step If It Appears Listed):

    In case, If you aren’t able to find your OS’s Drive listed or mentioned in the BIOS Menu then it’s quite possible that your Hard disk Drive or Solid State Drive is not connected properly because of some faulty cable or maybe your main storage drive got dead.
    Both of the things can be possible and to check what’s happen to your computer?
    You’ll need to open your Computer’s Casing and change the SATA Cable with some new one.
    Otherwise, at first, you can also try to disconnect the SATA cable from the old slot and reinsert it in some another free one.
    And not just that, you can also try to change your Storage Drive’s Power Connector too.
    To do that, just put out the main power cable connector from the storage device and then just put back some other one, which you can normally find coming from the PSU (Power Supply) of your computer, and one more thing you can’t replace any cable in laptops.

    I know sometimes replacing SATA Cable won’t works either, or it’s also possible that your laptop is having some problem to find the HDD/SSD in BIOS.

    In both conditions, it’s 99% possible that your HDD/SSD drive got faulty and to confirm that, you can also try to use some other new or working HDD/SSD in your computer or laptop, only just for the testing purpose.

    Last edited: Apr 1, 2017

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