How to Fix "No Boot Device Found" Error


Troubleshooting Guide: How to Fix "No Boot Device Found" Error


Encountering the dreaded "No boot device found. Press any key to reboot the machine." error message on your computer can be both frustrating and concerning. This error typically indicates that your computer is unable to locate a valid bootable device, preventing it from starting up properly. Fortunately, there are several steps you can take to diagnose and resolve this issue without the need for extensive technical expertise.

No Boot Device Found" Error

Understanding the Error Message

When your computer starts up, it searches for a bootable device—a storage device containing an operating system (OS) that it can load. If the computer fails to find such a device, you'll see the error message: "No boot device found." This can be caused by a range of issues, from hardware problems to misconfigured settings.

Troubleshooting Steps

  1. Check External Devices: Sometimes, an external device like a USB drive or an external hard disk can interfere with the boot process. Disconnect all external devices and try booting again.
  2. Verify Boot Order: Your computer's BIOS or UEFI settings dictate the order in which it searches for bootable devices. Make sure your internal hard drive or SSD is set as the primary boot device. Access the BIOS/UEFI settings during startup by pressing the appropriate key (often F2, F10, or DEL).
  3. Inspect Data and Power Cables: Ensure that all cables connecting your hard drive or SSD are securely plugged in. Loose or damaged cables can prevent your computer from detecting the boot device.
  4. Test Another SATA Port: If you have multiple SATA ports on your motherboard, try connecting your hard drive or SSD to a different port. A faulty port could be the culprit.
  5. Run Diagnostics: Many computers have built-in diagnostics tools that can help identify hardware issues. These tools can be accessed from the BIOS/UEFI settings or during startup by pressing a specific key (e.g., F12).
  6. Check for Hard Drive Failures: If your hard drive is failing, it won't be recognized as a bootable device. Use diagnostics tools like SMART (Self-Monitoring, Analysis, and Reporting Technology) to check the health of your hard drive.
  7. Reset BIOS/UEFI Settings: If you've made changes to the BIOS/UEFI settings recently, they could be causing the issue. Try resetting the settings to their default configuration.
  8. Repair or Reinstall OS: If your operating system is corrupted, damaged, or missing, you might need to repair or reinstall it. Use a bootable USB drive or recovery disc to perform these actions.
  9. Check for Secure Boot and UEFI: If your computer uses UEFI and Secure Boot, ensure that they are configured correctly. Secure Boot is a security feature that prevents unauthorized bootloaders from running during startup.
  10. Perform a System Restore: If you recently installed new software or updates that triggered the error, performing a system restore to a point before those changes could help.

Preventing Future Occurrences

To prevent the "No boot device found" error from recurring, consider the following:

  • Regularly back up your data to prevent data loss.
  • Be cautious when making changes to BIOS/UEFI settings and when installing new software.
  • Keep your operating system and hardware drivers up to date.
  • Periodically run hardware diagnostics to catch potential issues early.


Encountering the "No boot device found" error can be distressing, but with a systematic approach and the troubleshooting steps outlined above, you can often resolve the issue and get your computer back up and running. Remember to stay patient and methodical as you diagnose and address the root cause of the problem. If you're unsure or uncomfortable performing these steps yourself, seeking assistance from a knowledgeable friend or a professional can help get your system back on track.

Top of Form


Post a Comment