What is the best (most complete and fastest) way to backup your Daz content library?

Hi everyone! :D
I'm gonna come back to my main PC in a few days, I'll format it and install W10 from the ground, and I need to backup my Daz library: I don't know why, I always fail, somehow, at this.
I currently have
- 7Gb of freebies, with metadata applied dragging them into the correct Smart Content tab.
- 45Gb of Daz Connect products.
This is how I would backup everything:
- DAZ CONNECT: Copy-Paste my datas into the matching folder, then let Daz check if everything's alright after the log in.
- FREEBIES: Copy-Paste data and Runtime into "My Daz Library", and add the custom folders with Clothings/Footwear/Accessories/Tattoos/Poses in the same place where I currently have it.
But what about the metadata? I know I can backup them right clicking on "Smart Content" and selecting "Export Product Metadata". Then what?
Thank you all in advance!