Windows 7 Trouble Upgrading from Windows XP to 7: NTDLR Missing Error Issue

1. Blue Screen of Death During Windows 7 Installation:​

• The Blue Screen of Death (BSOD) during the Windows 7 installation process might indicate a hardware or driver compatibility issue.
• To troubleshoot this, you can try booting into Safe Mode with Networking and then updating drivers or rolling back to older drivers if needed.

2. Continual Loop When Inserting the Windows 7 Installation Disc:​

• If inserting the Windows 7 installation disc results in a continual loop of the same message, it could indicate a problem with the boot settings or the installation media.
• Try using a different installation disc or creating a bootable USB drive with the Windows 7 installation files.

3. NTDLR Missing Error After Failed Installation Attempts:​

• The "NTLDR is missing" error typically occurs when the computer is trying to boot from a non-bootable source or the boot order is incorrect.
• You can try fixing this issue by booting from the Windows XP installation disc and using the Recovery Console to repair the boot sector.

Steps to Repair the "NTLDR is Missing" Error:​

1. Boot from the Windows XP installation disc.
2. Enter the Recovery Console.
3. Run the following commands:
   • fixboot: Writes a new boot sector on the system partition.
   • fixmbr: Repairs the master boot record.
4. Remove the installation disc and restart the computer.

   Additional Recommendations:​

   • Ensure that all necessary data is backed up before proceeding with any repairs to avoid data loss.
   • Check the hardware compatibility of Windows 7 with your system to prevent further installation issues.
   • If needed, seek assistance from a professional or a local computer repair service if the issues persist.
   By following these steps and recommendations, you should be able to resolve the issues encountered during the Windows 7 upgrade process. Let me know if you need further assistance or encounter any other problems during the process.