Handbook:X86/Blocks/Bootloader/zh-cn

Although installing for a 32-bit CPU, almost all motherboards (starting from around 2006-2007 until the present) that were produced with support for UEFI have 64-bit UEFI firmware. Some users may notice "64" in the name of configuration settings and files in the coming sections below. This is expected in nearly every case.

There are a few very small exceptions to this 64-bit UEFI firmware rule, namely few early Apple Macs and some Intel Atom powered Dell tablet PCs had support for 32-bit UEFI firmware. The vast majority of readers will never encounter 32-bit UEFI firmware in the wild. For this reason 32-bit UEFI firmware is not covered in the Handbook.