How to Fix Reboot And Select Proper Boot Device Error in Windows

If you are facing Reboot and select proper boot device error or Insert boot media in selected boot device, then read more to Fix it on Windows devices.

The “Reboot and Select Proper Boot Device” error message appears when the operating system (OS) cannot connect to the hard disk or drive. It refers to a BIOS error; you may receive the error message on any PC or laptop operating on Windows 7/8/10. It always appears on Toshiba, ASUS, Gigabyte, and Acer PC or laptop.

The leading causes of “Reboot and Select Proper Boot Device” issues are Inaccessible boot device, Corrupt BIOS/UEFI installation, Brokenbootloader, corrupt hard drive, Damaged hardware, and many more. The ‘reboot and select proper boot device’ error occurs when BIOS cannot detect the device on which Windows 7/8/10.

With so many various solutions available here, you can quickly fix this “Reboot and Select Proper Boot Device” error in Windows 10/8/7. According to the error, you may also reboot the PC, hoping that it will fix the error.

What is Reboot And Select Proper Boot Device?

If you are among those Windows applicants who wish to upgrade to a bigger hard drive by downloading or installing an extra hard disk drive (HDD). There is a maximum chance that you may receive a Reboot and Select proper Boot device Windows 10 error message while booting your PC after replacing the hard drive.

Based on the creator of BIOS in each particular motherboard, the message that occurs may be slightly dissimilar, but the meaning remains similar. You need to complete the PC’s request; else, it will still fail to load the operating system. The “Reboot And Select Proper Boot Device” appears because of many reasons.

7 Easy Solutions To Fix Reboot And Select Proper Boot Device Error:

Solution 1: Check The Power Cable:

• First of all, turn off your PC or laptop and unplug it from the power source also.
• After that, eliminate the cabinet and see the cable attaching your hard drive to the motherboard.
• If you search for any wear split in the cable (which is likely to happen over time), replace the old wire with the latest one. If you search for a loose connection, disassemble the wire and reconnect it correctly.
• But you never search the physical loss to the wire, nor it is attached inappropriately, and then proceed to the next solution.

Solution 2: Disable or Activate Legacy Boot:

• Here, it will help if you restart your laptop or PC. On startup, instantly enter your PC’s UEFI settings menu.
• Search the “Legacy Boot” option, which comes under the UEFI settings. If the Legacy Boot option is allowed, then deactivate it. If it is deactivated, then allow it.
• Apply the above changes and restart your laptop or PC.
• When your PC or laptop boots up, check to see if the “Reboot and Select Proper Boot Device” persists.

Solution 3: Use Diskpart:

• Firstly, place the recovery media into your PC or laptop.
• After that, restart your system and boot the media from the system you have placed.
• The “System Recovery” choices window will show on the screen, so you have to choose “Troubleshoot” and hit on the “Advanced” option.
• Now, choose ‘Command Prompt’ and mention ‘Diskpart’ and press the “Enter” button to continue.
• Finally, mention the ‘Diskpart’ and hit on the “Enter” tab. The ‘X’ is known as the disk’s name where the operating system is downloaded.

Solution 4: Check System Boot Order in BIOS:

• To enter the BIOS of your PC, you have to reboot your system.
• You need to enter the Esc, Delete, F2, F8, F10, or F12 key, to enter the BIOS menu of your PC or laptop.
• The key to enter the Boot menu differs from PC to PC and depends on what computer brand you are operating.
• After that, launch the Boot tab to show the latest boot order used by your PC.
• Ensure that your Hard Disk is chosen as the primary option. After applying all the changes, you have to press the “Save the Settings” button under the BIOS menu.

Solution 5: Change the CMOS Battery:

The CMOS (Complementary Metal-Oxide-Semiconductor) battery is a small circular cell situated in your switchboard. If it is broken or failing, there it is likely that you will encounter the “Reboot and select proper Boot device” error.

• Firstly, launch your PC’s cover, use the motherboard, and remove or uninstall the CMOS battery.
• After that, grasp the power button for a few seconds to release any remaining charge. Finally, change the CMOS battery to the other one.

Solution 6: Clean the RAM:

RAM is another important physical device that may cause various problems, comprising Reboot and Select a Proper Boot Device Error during the boot time if not remove or clean the RAM over the past years. So, to remove the error, you have to clean the RAM.

• Please turn off your PC and unplug it from the main switchboard.
• Delete the outer cabinet by removing the screws from the upper side and bottom side.
• Then search the RAM in the CPU, which is on the switchboard itself.
• After opening the RAM from the hold, gently delete or remove it from its location.
• Clean the upper, lower side of RAM with a cotton cloth or a soft brush. After removing the RAM dirt, put it back on its location, lock it, and close the cabinet.

Solution 7: Reinstall Windows:

• First of all, you have to generate bootable media with its Media Creator and start the computer again from the media.
• Now, run the “MiniToolShadowMaker,” which comes under the “MiniTool PE Loader” page.
• After that, select the files you have to restore or back up and the goal path you wish to save the files.
• Open the backup by pressing on the “Back Up Now” button.
• At last, you may reinstall the desired Windows without worrying about misplacing necessary files.

Final Conclusion:

The “Reboot and select proper boot device” is a terrible error that troubles all Windows OS versions (operating system). It is a BIOS error; you may get it on any PC operating Windows 10 or any other earlier version of the Windows operating system. It is the best time to apply the above methods to solve or fix the “Reboot and Select proper Boot device or Insert Boot Media in particular boot device.

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