If you are booted in a frozen snapshot and you use the function Freeze under "Actions", the frozen storage (Freeze Storage.arx) is also updated, I call this "re-freezing". Upto now I always used this method, but I noticed that it doesn't work always properly as I expected. I had two problems : 1. Look'n'Stop asked each time for authorization of Thunderbird, when I opened Thunderbird for the very first time, which wasn't really an error, but very annoying. After I authorized, I re-freezed the snapshot to remember the authorization, but that didn't work. After reboot I had the same thing. 2. Look'n'Stop also asked for authorization of Prevx1. Re-freezing didn't help either. It has probably something to do with Look'n'Stop. Solution : I unfreezed the snapshot and freezed it back and that worked properly. I can't explain why FDISR didn't update the freeze storage during re-freezing and this was not supposed to happen. Re-freezing = freeze + update and it seems to work for other things, but not in this case. Straight from the FDISR manual : This is a warning for frozen snapshot users : you better use "unfreeze & freeze" than "re-freeze".