Please See the system requirements for CS5.5 from below link : http://prodesigntools.com/products/adobe-cs5-system-requirements.html
If your products are compatible with 64 bit then you can install it ...
Please See the system requirements for CS5.5 from below link : http://prodesigntools.com/products/adobe-cs5-system-requirements.html
If your products are compatible with 64 bit then you can install it ...