For the latest system requirements, visit https://helpx.adobe.com/incopy/system-requirements.html.
For a list of the latest system requirements for other Creative Cloud products, see http://www.adobe.com/products/creativecloud/tech-specs.html#requirements.
Creative Cloud trials are "try and buy", allowing you to evaluate individual products or editions and then convert the installed trial to a full version. You can convert from a trial to a full version at any time by signing up for a subscription. If you purchase a subscription, make sure that you are online and have logged in with an Adobe ID to start using your full version.
For general Adobe Forums, visit http://www.adobe.com/go/forums.
To find help on topics related to downloading, installing, and getting started with your software, visit http://forums.adobe.com/community/download_install_setup.
For product Help plus community-based instruction, inspiration, and support, visit http://www.adobe.com/go/learn_InDesign_support_en.