I bought a USB with more space, and I wanted to pass everything from the older device to this new one; how can I?
There are a few ways to do this.
You should be able to configure the new USB drive on your Xbox 360 and then move each file from your old USB to the new USB.
Using Horizon you can probably move each file from one to another or you can extract each file to your desktop and then put them all on the new drive with Horizon.
I’ve never attempted doing this but it’s definitely possible one way or another. I am a bit rusty with 360 stuff as I’m mainly PC and PS4 these days, but if you give it a try and run into issues let me know and I’ll see what I can figure out for you.