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Recently I downloaded Windows 7 32-bit. However, I am unable to load it onto a USB drive by using the Windows 7 USB DVD download tool.

It gives a message that the iso is not valid. I then found that bootmgr.efi is missing in the downloaded file. How can I proceed to fix this and format my laptop?

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P.S.- Efi is not supported, I got that. But the issue regarding uploading the windows ISO file still remains. Any idea..? – fadooengineer May 20 '14 at 15:08
You can’t install Windows from a USB hard drive using AT BIOS. It seems to be a limitation of the Windows setup bootloader. – kinokijuf May 20 '14 at 18:30

32-bit Windows does not support EFI.

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32Bit Windows 7 doesn't support UEFI, but win8 does support it. – magicandre1981 May 20 '14 at 17:40

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