Fix: Error Loading Operating System

Hello, recently we have discovered that a lot of users have encountered the Error loading operating system issue on their windows. It usually occurs, when you try to boot your Windows PC, you may come across the error message: “Error loading operating system”.

The issue is usually encountered by users, when they are trying to install a new copy of windows on their PC or upgrading older into a newer version of windows. Besides, sometimes system files get corrupted after installing another operating system for dual boot.

So we have prepared this article for you, it includes a brief description of the Error Loading Operating System issue, Reasons and also Easy Solutions to help you fix this issue in Windows 10, 8 and 7.

What Is Error Loading Operating System problem?

A computer needs an operating system to perform any task past the system BIOS screen at startup. Error Loading Operating System issue occurs in the starting process even before windows had the chance to load. It is an issue when Windows informs that there is a problem with the start-up cycle. Most computer users might have encountered this irritating problem when starting Windows 7, Windows 8/8.1, Windows 10.

The issue of Error Loading Operating System usually occurs after the fresh installation of the Windows operating system, sudden power failure, system crash, or system restart, which makes the PC to throw the error message.

What causes this problem?

As we as all know, when a PC gets started, its BIOS and CMOS will check the system setup, hard drives, and then boot the operating system. During the procedure, if there is any issue gets found in the hard drive, then the Windows operating system won’t be launched successfully and you can’t open your desktop.

So other than the physical damage of hard drive, this below-mentioned problems can also prevent your operating system from lunching successfully:

  1. That’s the most common reason when the hard drive’s system partition is damaged due to sudden power cuts, virus infection, or disk write error.
  2. When the operating system’s files and folders are damaged.
  3. When the system BIOS does not support the hard drive.
  4. It can also happen when the multiple hard drives have been connected to your computer due to which the primary hard drive containing the operating system & system applications is now not being detected.
  5. The hard drive has become physically corrupt.

Now you know the Reasons for the Issue of Error Loading Operating System. You might be wondering how to fix this issue, so here we have a lot more to offer you, just scroll it down and your issue will be fixed.

How to Fix Error Loading Operating System on Windows 10

Well, no matter what makes your computer pop out that Error Loading Operating System issue, here are few methods for you to remove such issue on your own. You merely have to choose the appropriate method to fix your issue according to your situations.

1. Check BIOS Boot Order

If there are more than one hard drives in your computer, at that point you ought to ensure that you have set the right hard disk as the bootable hard drive to load the operating system. Sometimes, clients may pick a wrong hard disk as the primary boot drive. In that case, they will face the Error Loading Operating System issue.

Well, now the question comes. How to enter the BIOS? Every computer has BIOS but the way to enter into the BIOS depends on the PC. To enter into the BIOS, You just have to start the computer and press the specific key immediately.

In case if you don’t know which key to hit, don’t worry, before the BIOS hands over control to windows, It reminds you which key to press through the message like “Press <DEL”> to enter setup”. Usually, they are the keys like F2, F10, the DEL key, the Enter key or the ESC key.

2. Run CHKDSK to Check and Fix Hard Disk Errors

As we mentioned previously, the hard drive’s system partition may become damaged due to disk write errors, sudden power cuts or virus attacks, which may cause error loading operating system issue. So to fix this issue you have to run CHKDSK to check and fix hard drive’s system partition errors firstly.

Here is the step by step guide:

Step 1: Create installation media with a USB flash drive or a DVD via the Windows 10 Media Creation Tool.

Step 2: Enter the BIOS setting to set the CD/DVD bootable disc or USB flash drive as the first boot device. Then boot from the installation media.

Step 3: Select your language preferences, and click on Next button to continue.

Step 4: Then choose to Repair your computer in the lower-left corner.

Step 5: Choose to Troubleshoot to go on.

Step 6: At the Advanced options page, choose Command Prompt.

Step 7: In command prompt type chkdsk c: /f /r /x and hit Enter.

3. Update BIOS

Take extra precautions while updating the BIOS. This is because, during the procedure of updating BIOS due to sudden power cuts the update might get stopped, because of this the BIOS firmware may get corrupted. Consequently, you might not be able to access your data. So always make sure to backup all your important files before updating your BIOS cause it can cost you to lose the access of your data.

Follow the step by step guide given below to update your computer BIOS:

Step 1: Note the model of your motherboard. Check this out in the user manual of your mainboard.

Step 2: Now identify the current BIOS version – For this, Firstly open the System Information app. Then in the search box type ‘System Information’ and choose ‘System Summary’. So the BIOS version will be displayed.

Step 3: Then Download the latest BIOS update – Visit the motherboard or laptop manufacturer’s website. Now search for the model of your system which you have noted and from the list of available downloads go for the BIOS update.

Step 4: Now run the BIOS update.

Step 5: At the end restart the computer after the BIOS update.

4. Repair Master Boot Record (MBR)

Damaged MBR can also cause the Error Loading Operating System issue. When the MBR gets corrupted consequently the whole booting process gets interrupted and windows cannot load successfully.

Here is the step by step guide:

Step 1: Create installation media with a USB flash drive or a DVD via the Windows 10 Media Creation Tool.

Step 2: Enter the BIOS setting to set the CD/DVD bootable disc or USB flash drive as the first boot device. Then boot from the installation media.

Step 3: Select your language preferences, and click on Next button to continue.

Step 4: Then choose to Repair your computer in the lower-left corner.

Step 5: Choose to Troubleshoot to go on.

Step 6: At the Advanced options page, choose Command Prompt.

Step 7: Once the Command Prompt loads, then type the following four commands and press Enter after each and wait till each operation ends.

1. bootrec /FixMbr

2. bootrec /FixBoot

3. bootrec /ScanOs

4. bootrec /RebuildBcd

Step 7: Now remove the CD/DVD.

Step 8: Then type Exit. Press Enter.

Step 9: At the end restart your computer.

Conclusion

So now I hope you understood how to fix error loading operating system in windows 10, 8, 7, these above-mentioned methods might have worked for you. In case if your issue is still not fixed then you can also go for the re-installation of the operating system.

If you have any other queries or suggestions to make, feel free to comment down below. Thank You!

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