Country does not equal language. McAfee's internationalization code is written incorrectly. They should be using either the user's preferred language setting or the OS default language setting rather than relying on the country setting. This is, unfortunately, reason enough for me to not purchase their product when my free trial expires. (In fact, I uninstalled it within only a few minutes of trying to get it to run in my language.)
Please let me know in which language is McAfee currently showing up and which language is your Operating Systemm. McAfee's language is based on the language of the Operating System and looks like there may be some mismatch in your case.