For Genuine Office 2021 Professional Plus key: 100% Genuine Office 2021 Professional Plus key. Activate both x86 and x64 bit version. Support all languages version, including English, German, Japanes, French, Chinese, Spanish and so on. Support Microsoft Online Update. One Key For One Computer. When you reinstall the Operating Systems or Application Software in the same computer, you can use same Key to activate again. Only for Genuine Version. Not for Trail, OEM, Beta and Non-Genuine Version.