So, I'm on a mac, but I faced the same problem when I got started about a week ago. Here's how I solved it:
When I download new content I:
1. Unpack / Unzip it
2. It will have a file structure that starts with a folder called "Content". The subfolders in the Content folder are the important ones. You want to keep the same folder structure as the files expect, so Daz is able to find them when you want to use the content. Your Folder structure is likely to look like this:
My Library
-data
-environments
-people
-presets
-props
-render presets
-runtime
-scene subsets
-shader preset
-shader presets (ONE file I downloaded uses this folder with this spelling, so I'm stuck with it too)
-templates
Data, People, and Runtime are the folders where 85% of your files will go.
For example, let's say that you get a new Hair product for a Genesis 8 Female.
You're likely going to need to:
1. Go to your unzipped folder structure.
2. Take the subfolders out of the data folder, and move them to the data folder of My Library
3. Take the subfolders out of the people folder, and move them to the My Library>People>Genesis 8 Female>Hair> subfolder.
4. Take the subfolders out of the runtime folder, and move them to support and textures in your My Library>Runtime>Support and My Library>Runtime>Textures folders, as appropriate.
You should start a new instance of Daz3D to test each new install, until you're confident in your system for installing new content.
Does that help?
