How to Fix: "Error loading operating system" after installing Windows XP on separate partition from Windows 7

The 'Error loading operating system' issue occurs when Windows XP is installed on a separate partition from Windows 7, causing the system to halt after the first reboot. This error affects users who have successfully installed Windows XP on a separate partition but are unable to boot into the operating system.

This problem can be frustrating for users as it prevents them from accessing their files and applications stored in the Windows XP partition. In this guide, we will walk you through the steps to troubleshoot and resolve the 'Error loading operating system' issue.

🛑 Root Causes of the Error

• The primary reason for this error is that Windows XP requires a specific boot order configuration to load from the separate partition. When Windows 7 is installed on a different partition, it may override the boot order settings, preventing Windows XP from loading properly.
• Another possible cause is master boot record (MBR) corruption, which can occur during the installation process or due to hardware issues. In this case, the 'Startup Repair' tool may have fixed the MBR corruption, but other issues may still be present.

🛠️ Step-by-Step Verified Fixes

✨ Wrapping Up

To resolve the 'Error loading operating system' issue, try adjusting the boot order configuration or checking the master boot record for any corruption. If these steps do not work, you may need to reinstall Windows XP on a different partition.