My operation system is windows 7 pro chinese version, I want to install the McAfee Anti-Virus software with english version. How I can do that?
Have you installed an English language pack from Windows Update optional extras - assuming one is available for Pro (not sure as I have Ultimate)? If so try switching to English as your system language and then remove whatever software you have already installed via Control Panel > Programs (in the normal manner), run the MCPR cleanup tool, reboot and reinstall from an English language account page (alter the country to the UK, USA, Australia or Canada at top right). That may do it but the installer reads what the system language is and installs that version, so you may have to contact Technical Support about this. It's free and linked under Useful Links at the top of this page.
OK, good luck ;-)