I saw a laptop with 3.0 over the weekend. I didn’t have any of my stuff with me to analyze it further, but a preliminary read from the internet says they use real encryption so it will be hard to recover the files except maybe some fragments on disk.
It’s sad, because from a Windows perspective, it’s actually very easy to prevent this. There are numerous Crypto prevention websites out there that will update your registry. Granted, the fixes will affect functionality of installs in some cases, but the AppData folder area used in Windows is fast becoming one of those bugaboos that Microsoft will eventually need to address.