I have a site collection, under it I have subsites. I want to save my
sitecollection as a template. I found this link and it said to do
by "save site as template". I did that, create new site collection by
using the template. However, when save it as template, it only save
the top-level of the site collection and none of my subsites and also
my content types didn't get copy over. Does anyone know how to save
site collection as template with content type.