how the wallet work, there is no roaming created, also i can't access to the "wallet" with the gui
You can access the wallet once it's synchorinized. It can actually already open and create new wallets. Excellent work in such a short time!
If you mean the data directory by "roaming", it indeed is automaticly saving the blockchain there (at least for me). As I don't like that, I noticed that you can change the default directory the same way you do it for the deamon and so I created a small .bat file to start my GUI wallet:
START .\bbr-qt-win64-v0.2.0.20(f9bfe73)\qt-boolb --data-dir=".\data"
EXIT