Sunday, January 11, 2015

Booting Windows 10 with bootia32.efi on a 64-bit UEFI System


I have downloaded Windows 10 AIO disk but it has only the bootia32.efiwhich can be booted only 32-bit Systems & not on 64-bit. I have browsed around the internet and found some suggestions that the bootmgw.efi can be taken either from an existing 64-bit installation or extracted from install.wim present in a 64-bit install iso and then renamed to the required bootx64.efi.


Is this possible ? And if so, Can I know the exact procedure to go about doing this if it is different from simply extracting and then renaming the file ?


Answer



You have downloaded a counterfeit ISO image. The genuine x64 Windows 10 does not have bootia32.efi — that file is belong to the x86 version.


Replace that with a genuine x64 image from Microsoft which you can get from here and you’re good to go. Note that “English” is en-US while “English International” is en-GB.


(Ignore the “Tech Bench Upgrade” babble — I have linked to this site because the regular one directs you to the online installer if it detects Windows, while from the “Tech Bench” one you can download just the ISOs directly regardless of browser.)


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