Find your Windows 8 / Windows 8.1 Digital Product Key stored in UEFI BIOS

找出存在 UEFI BIOS 中的 Windows 8 / Windows 8.1 序號

You buy a Windows 8 / Windows 8.1 preloaded notebook/PC/AIO, you can't find Certificate of Authenticity (COA) sticker anymore (some small OEM still use COA on their Windows 8 shipping products). COA is used in Windows 7 and previous edition of Windows.

The Digital Product Key (DPK) to is used to activate Windows and it is unique. It is stored in the MSDM table and the MSDM table in stored in BIOS ACPI table.

There is a tool named RW utility can help you to find the DPK out. So far, the latest version is 1.6.4