Introduction:
Hi guys, this is Dude from EZ Techs. In this tutorial, I’ll be demonstrating a number of ways to fix the problem of no operating system found in Windows, whether it’s Windows 10, 8, or 7. Depending on the make and model of your laptop, the error message could vary. For most laptops, it would say “no operating system found,” while for others it may say “no bootable device found” or “no boot device found.” Let’s get started.
Fixing Loose Connection Between Hard Disk and Motherboard:
The first possible cause of the issue could be a loose connection between your hard disk and the motherboard. This is a physical issue and can happen due to vibrations or shock. Reattaching the hard disk more firmly to the connector may resolve the problem.
Checking Boot Priority Order in BIOS:
Another common issue could be the boot priority order in the BIOS. Ensure that your hard disk is at the top of the priority order so that the BIOS boots from it first. Access your BIOS settings, navigate to the boot order section, and set your hard disk as the first boot device.
Switching Between UEFI and Legacy Boot Mode:
If changing the boot priority doesn’t solve the issue, try toggling between UEFI and Legacy boot mode in the BIOS. This may help if your hard disk requires a specific boot mode that is not currently set.
Using a Bootable USB with Windows Installation Files:
If all else fails, using a bootable USB with Windows installation files can help. Boot into the USB, access the Command Prompt, and run commands to assign the correct volume with your Windows installation.
Conclusion:
These troubleshooting steps should help you fix the “no operating system found” issue on your Windows laptop. Follow the instructions carefully and in the presented order to avoid further complications. If you found this tutorial helpful, give it a thumbs up, share with others, and subscribe for more tech support videos. Thanks for watching!
Troubleshooting: Fixing "Operating System Not Found" Error in Windows
Causes of Operating System Not Found Error
When you turn on your computer and see the dreaded message "Operating System Not Found" or "No Bootable Device," it can be quite alarming. This error usually indicates that your computer is having trouble locating the operating system files necessary to start up. There are several possible reasons why you might encounter this error:
1. Corrupted Boot Configuration Data (BCD)
The Boot Configuration Data (BCD) is a crucial file that contains information about how your computer boots up. If this file becomes corrupted or unreadable, your system may not be able to locate the necessary files to start up properly.
2. Missing or Corrupted System Files
If important system files are missing or corrupted, your computer may not be able to boot into the operating system. This can happen due to various reasons, such as a failed Windows update, a sudden power outage during a system update, or a virus/malware infection.
3. Hard Drive Failure
If your computer’s hard drive is failing, it may not be able to read the operating system files necessary for booting up. This can happen due to physical damage to the hard drive, bad sectors, or general wear and tear over time.
Fixing the "Operating System Not Found" Error
Fortunately, there are several steps you can take to troubleshoot and fix the "Operating System Not Found" error on your Windows computer. Here’s a step-by-step guide to help you get your system back up and running:
1. Check Your BIOS Settings
The first thing you should do is check your computer’s BIOS settings to ensure that the correct boot order is set. Make sure that your hard drive is listed as the primary boot device. You can access the BIOS settings by pressing a specific key (usually F2, F12, or Delete) during the startup process.
2. Repair the Boot Configuration Data (BCD)
If the BCD file is corrupted, you can repair it using the Windows Recovery Environment. Boot your computer from a Windows installation disk or a USB drive, and select the "Repair your computer" option. Then, navigate to Troubleshoot > Advanced Options > Command Prompt and run the following commands:
bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd3. Perform a System File Check
To fix missing or corrupted system files, you can run a System File Check (SFC) scan. Open Command Prompt as an administrator and run the following command:
sfc /scannow4. Check Your Hard Drive for Errors
If your hard drive is failing, you can use the built-in Windows tool called Check Disk (CHKDSK) to check for and fix any errors. Open Command Prompt as an administrator and run the following command:
chkdsk /f /r5. Reinstall Windows
If all else fails, you may need to reinstall Windows to fix the "Operating System Not Found" error. Make sure to back up your important files before proceeding with the reinstall.
By following these troubleshooting steps, you should be able to fix the "Operating System Not Found" error on your Windows computer and get your system back up and running smoothly. Remember to regularly back up your important files to prevent data loss in case of unexpected system failures.
Check BIOS settings
To fix the issue of operating system not found in Windows, start by checking the BIOS settings on your computer. Access the BIOS by pressing a specific key (usually F2 or Del) during startup. Once in the BIOS, ensure that the correct boot order is set, with the hard drive containing the operating system listed as the first boot device. Save the changes and exit the BIOS. This simple step can often resolve the issue of no bootable device found.
Repair the Master Boot Record (MBR)
If checking the BIOS settings didn’t solve the problem, another potential solution is to repair the Master Boot Record (MBR) on your hard drive. You can do this by using the Windows installation media and accessing the Command Prompt. From there, use the “bootrec /fixmbr” command to repair the MBR. Restart your computer and see if the operating system not found error has been resolved. Repairing the MBR can help fix issues related to no bootable device found on Windows.
Conclusion: Everything you need to know about fixing operating system not found in Windows
In conclusion, addressing the issue of operating system not found in Windows (no bootable device) can be done by checking BIOS settings and repairing the Master Boot Record. By following these steps, you can troubleshoot and resolve the issue of no bootable device found, ensuring your computer boots up properly and the operating system is accessible. Remember to always back up your important files before attempting any major repairs to avoid data loss.
Source: Youtube Video https://www.youtube.com/watch?v=Kuah6gYqT2I of Channel EasyTechs.
