odrive's database local databases are encrypted using the Windows CryptAPI. The same goes for the encryption keys stored in the Windows registry. The encryption of these items is based on the Windows user profile. This means, when you re-insintall Windows, this information will be wiped out. Even if you try to bring it over, somehow, I don't believe Windows will be able to decrypt the info, even if you setup the same username and password.
As far as my own testing goes, I have, unfortunately, not found a way to pre-populate an encrypted folder, for the reasons mentioned above and in my previous post.