Windows x64  (Vista/7/8/8.1) ISO Installer/Setup environment (WinPE) does not include the WoW64 subsystem (which provides win32 executables support in win64 env). Due to this the official win32 executables of gdisk and fixparts (from sourceforge) cannot be run inside the Windows x64 ISO WinPE environment (I tried in Win 7 and Win 8.1 x64 ISO, UEFI USB boot). Hence I request you to provide official win64 executables of gdisk and fixparts for download in sourceforge. Thanks in advance.

With Best Regards,