I have difficulty installing EpiInfo 2002 version on my computer which uses Windows 8.
The version you're trying to install, doesn't have support for a modern operating system like Windows 8. You will need the latest version in order to have support for that particular system. I've obtained EpiInfo 7 from the official website and completed the installation successfully on Windows 10 x64. I kindly recommend obtaining the latest version in order to enjoy all the features it has to offer, including the compatibility with Windows 8 and beyond.