We've tried to make KNIME Analytics Platform as easy to use as possible. Below are some resources which may help you to use KNIME.
Download KNIME Analytics Platform.
The installation of KNIME is fairly easy and straight forward: install or simply unpack and run.
Build a workflow
Learn how to build your first workflow, configure and execute nodes, and inspect the results.
Extensions and integrations provide additional functionality such as access to and processing of complex data types, as well as the use of advanced algorithms.
Find more information in the Documentation section, the FAQs, the E-Learning Course or the KNIME Forum.