As you expand the number of folders (including those you delete) you may become frustrated when opening a folder the settings have reverted to default and you have to start over (I find it especially frustrating in My Music Files as I have a set pattern I like). I finally found this solution. A reminder that this is a registry change so do back up registry before doing this, and only if you're comfortable working in registry.

Read the forum post and resulting discussion by clicking here.