Thanks Andrè. I thought migrating a physical machine was a less demanding thing ... And anyway I hope the performance after this further step on the drivers improves, otherwise it would be a bit disappointing. Also, I don't know if it's just my case, but if I think of all these interventions in the case of migrations of different physical machines, I must say that it is almost less demanding to create a new virtual machine directly ... :-). I have another question, but I prefer to open a new post as it is a different topic. Thanks again.