While “selling” openSUSE to a friend of mine, I tried to explain him all the steps of the installation and all the configuration options which I had changed. He was not any geek and it was his first time seeing Linux.
While most of the installation did not need much explanations, I definitely spent most of the time on partitioning. Not that initial proposal was not fine, unless one has special requirements, but there is one elementar input, which even newbies may want to set: How to split disk between Windows and Linux. The installation proposal works just fine, but if one needs to keep more or less space for Windows than proposed and does not have any skills, he is doomed – and so would have been he.