Windows – Couldn’t find NTLDR. the file is possibly corrupt. the header checksum doesn’t match the computed checksum

formattingwindows 7windows xp

I am trying to format a PC. If the brand and model are needed let me know in the comments. I tried installing Windows 7 but during the expanding Windows files step the computer froze. So I forced a reboot. Now I get the error

the file is possibly corrupt. The header checksum doesn't match the computed checksum.

I decided to fall back to Windows XP but I get the error

Couldn't find NTLDR.

Note that both errors appear right after press any key to boot from CD/DVD and both Cs are original and work on other PC.

Tried booting from a live CD of Ubuntu (very old version that requires only 256MB of Ram) and during the loading screen it went to a black screen with a horizontal cursor blinking.

As it seems I cannot run any OS nor install one. The errors do not appear if I choose not to boot from CD.

If I don't boot from CD, I get boot manager missing error. The odds are faulty ram or faulty dvd drive?

According to ComputerHope The main reasons for the NTLDR missing error are

  1. Computer is booting from a non-bootable source.

    Not Present Because I am trying to boot from original CD of Windows XP, similarly with Windows 7

  2. Computer hard drive is not properly setup in CMOS.

    Hard Drive was already setup I am trying to perform a format

  3. Corrupt NTLDR and NTDETECT.COM file.

    Windows are not present on the hard drive at all. I started a format, wiped the Hard Drive Clean. The error started occurring after restart

  4. Misconfiguration with the boot.ini file.

    Same with number 3

  5. Attempting to upgrade from a Windows 95, 98, or ME computer that is using FAT32.

    The computer already had Windows XP. Tried to upgrade to Windows 7, failed, tried to fall back to Windows XP Failed again

  6. New hard drive being added.

    Hard drive was already present. Unplugged and replugged during faulty optical drive (DVD Drive) replacement. The computer is running AMI Bios and the hard drive can be "seen" inside the Bios

  7. Corrupt boot sector or master boot record.

    Don't know what that means or how to test it

  8. Seriously corrupted version of Windows 2000 or Windows XP.

    Both are missing, the Hard drive is wiped clean

  9. Loose or Faulty IDE/EIDE hard drive cable.

    The Hard drive is a SATA drive, unplugged and replugged for testing purposes. It still happens

  10. Failing to enable USB keyboard support in the BIOS.

    Keyboard and mouse are both PS/2

Tried installing Windows XP from a usb again and I get error

".SIF file used by setup is corrupted or missing: Value 0 on the line
in section [SourceDisksFiles] with key "SSA.EXE"

Best Answer

Have you changed any BIOS settings recently? If so, I would try setting the BIOS back to default to eliminate any issues that may come about due to wonky settings.

I would then suggest using the GParted LiveCD to boot and attempt to format the HDD. If it doesn't want to format or work using this LiveCD then it could be possible that the HDD is no good. If you can't boot into the LiveCD, I would then try booting without the HDD plugged in at all to see if the problem still exsists.

Finally, just to make sure that your RAM is okay, I would suggest creating a Memtest86+ boot CD/USB and running it for at least 24 hours. This should eliminate any doubt about the health of the RAM.

EDIT: You could also try making a LiveUSB instead. Just to test your theory of faulty DVD drive.