It is possible to "recover access" to windows using boot repair as stated in the link you posted but it is not possible to "repair windows boot files". The difference is obtaining "access" and "repairing", the first boot repair does, the second it does not.
In this particular case, the OP had an install of windows on a GPT partition with no EFI partition hence no windows boot files so there is nothing that boot repair or any similar Linux software could do. A windows install or repair CD/DVD/usb would be necessary.
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