Sua resposta principal está no link da Intel que você forneceu. Preciso do Utilitário de instalação de software para chipsets Intel®?
Did you just install the operating system?
If the answer is yes, you should install the Intel Chipset Software Installation Utility to ensure that your chipset is optimally configured. Note The Intel® Chipset Software Installation Utility is not required and not available on systems running any version of Microsoft Windows NT* 4.0.
If the answer is no, you do not need to install the Intel Chipset Software Installation Utility.
Sobre quando instalar ,
If the Intel® Chipset Software Installation Utility is required for your system, it should be installed immediately after installing your operating system and any operating system service packs, but before installing any other device drivers.
Sobre o suporte do Windows 7, aqui está uma interação do usuário Beta no Fórum da Intel .