Moving from Proper Installation to Portable Installation

Hi,

In a similar mood as this post, I'd really like to know how I could make the opposite, ie. I'd like to switch from a proper installation to a portable one, also keeping my metadata, library, and plugins intact.

If I could successfully make a backup of the regular installation's data, I wasn't able to restore them onto a portable environment.

Any hints on how to do this?

Thanks!