This product is composed of two parts:a user guide and a USB for Password Reset Pro. This USB is used to reset login passwords and compatible with Windows 2000, XP, Vista,7,8.1,10,server. It can remove password for local accounts and local credential of Microsoft accounts. Caution: this tool CAN'T remove Microsoft account online password and CAN'T remove BIOS Password. This product works with both of 32- and 64-bit computers as well as 32/64bits operation system. It supports Legacy BIOS, UEFI and secure boot mode and should work with most of brands’ laptop and desktop. However if you have an issue, please contact us before leaving a feedback. We will try our best to help.