How to Fix Error Loading Operating System Get the fix to the Error loading operating system boot error in Windows XP, Vista, 7, 8 and 10. This error shows when your computer's BI...
2018-07-31T07:46:04Z

How to Fix Error Loading Operating System

Get the fix to the Error loading operating system boot error in Windows XP, Vista, 7, 8 and 10. This error shows when your computer's BIOS doesn't support the capacity of the hard disk where you are installing Windows XP or it's not properly installed.

Fix Error Loading Operating System

Issues with your hard disk drive's partition can also be a major cause. Alternative error messages. There are no other known alternative messages for this boot error, except the Error loading operating system text that appears on your computer's black screen at startup.

Use Easy Recovery Essentials


Easy Recovery Essentials can fix many errors such as this automatically using its built-in Automated Repair option. EasyRE is currently available for Windows XP, Vista, 7 and 8 and can be downloaded and created on any PC.

  1. Download Easy Recovery Essentials. Make sure to note your Windows version (XP, Vista, 7 or 8) before you download EasyRE. This guide can help you identify what version of Windows you have installed.
  2. Burn the image. Follow these instructions on how to burn the bootable ISO image very carefully, as making a bootable CD can be tricky! Alternatively.
  3. Boot up your PC from the Easy Recovery Essentials CD or USB you created.
  4. Once EasyRE is running, choose the "Automated Repair" option and click Continue.
  5. After EasyRE scans your computer's drives, identify and select the drive letter for your Windows installation from the list, and then click on the Automated Repair button to begin.
  6. Easy Recovery Essentials will start analyzing the selected drive for problems. EasyRE will test for and attempt to automatically correct errors with the disk, partition, bootsector, filesystem, bootloader, and registry. No intervention is required, as EasyRE's repair is fully automated:
  7. Once the process is complete, EasyRE will report its findings. Click on the Restart button to reboot your PC and test the changes.
  8. The Error loading operating system error should now be fixed as your PC begins to load:

You can download Easy Recovery Essentials from here

Fix Error loading operating system in Windows XP


You can fix this error without a Windows XP installation disc as you don't need to boot into its Recovery Console.

Check your hard drive status in BIOS menu

Your computer may not see the hard drive correctly and can't boot into XP. You can check its status in BIOS (or CMOS Setup), but the step to access it depends on your computer's manufacturer.

Press one of these keys to enter BIOS/CMOS: "DEL" or "F1" or "F2" or "ESC".

Recreate the partitions

If your hard disk is setup correctly, you can recreate the partitions by installing Windows XP again.
The Error loading operating system error is more likely to appear if your partitions were also changed by another system before installing XP, e.g. a Linux distribution.
When you reinstall Windows XP, make sure you delete all partitions and create the partitions you need to install XP.

Update the BIOS

If none of the above fixes works for you, you can try and update your computer's BIOS. When starting up your computer check the messages at boot to determine your motherboard's manufacturer.

Press "Pause" key at boot to pause the loading messages.
You can also check the BIOS version when accessing BIOS Menu/CMOS Setup. Go to Check your hard drive status in BIOS menu above for the available keys to access it.

Fix Error loading operating system in Windows Vista


=> Windows Setup CD/DVD Required!
"Some of the solutions below require the use of the Microsoft Windows setup CD or DVD. If your PC did not come with a Windows installation disc or if you no longer have your Windows setup media, you can use Easy Recovery Essentials for Windows instead. EasyRE will automatically find and fix many problems, and can also be used to solve this problem with the directions below."
You can also try the solutions from Windows 7.

Run System Restore from the disc

This solution works if you have System Restore enabled on your Windows Vista.
The steps for restoring your PC with System Restore:
  1. Insert the Windows Vista install disc
  2. Restart your computer and boot from the install disc
  3. Press a key when Press any key to boot from CD or DVD message appears on your screen
  4. Click on Repair your computer after selecting a language, time and keyboard method
  5. Select the drive where you installed Windows (usually C:\)
  6. ClickNext
  7. Select System Restore from the System Recovery Options window
  8. Follow the System Restore instructions to select a restore point
  9. Restore your PC by clicking Finish

Use Startup Repair

  1. Insert your Windows Vista install disc
  2. Restart your computer and boot from the CD
  3. Press any key when you see Press any key to boot from CD or DVD
  4. Click Repair your computer after selecting your language, time and keyboard method
  5. Select the drive of your Windows installation and click Next. The standard drive is usually C:\.
  6. Select Startup Repair and wait for the process to finish.

Fix Error loading operating system in Windows 7


=> Windows Setup CD/DVD Required!
"Some of the solutions below require the use of the Microsoft Windows setup CD or DVD. If your PC did not come with a Windows installation disc or if you no longer have your Windows setup media, you can use Easy Recovery Essentials for Windows instead. EasyRE will automatically find and fix many problems, and can also be used to solve this problem with the directions below."

Use bootrec.exe and rebuild the BCD

  1. Insert your Windows 7 install disc
  2. Restart your computer and boot from the CD
  3. Press any key at the Press any key to boot from CD or DVD message
  4. Choose Repair your computer after you select the language, time and keyboard method
  5. Select your Windows installation drive (usually C:\)
  6. Click Next
  7. Select Command Prompt from System Recovery Options
  8. Type the following command and press Enter:
"bootrec" /"rebuildbcd"

*That's all.
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