ˌɔn mˈæk ˌoʊˈɛs kəmpjˈuːɾɚz bˈeɪst ɔnðɪ ˈɛks sˈɪksti fˈoːɹ hˈɑːɹdwɛɹ ˈɑːɹkɪtˌɛktʃɚ, ðɪ ˌiːˌɛfˈaɪ sˈɪstəm pɑːɹtˈɪʃən ɪz ɪnˈɪʃəli lˈɛft blˈæŋk ænd ʌnjˈuːzd fɔːɹ bˈuːɾɪŋ.
On macOS computers based on the x64 hardware architecture, the EFI system partition is initially left blank and unused for booting.