http://www.microsoft.com/windowsvista/getready/preview....
Il suffit de lire pour se convaincre que de beta "gratuite" il y a tout de même un paquet non négligeable de contraintes. Pour moi l'immense majorité des releases installées sont issues de la mule ou bien de l'ex site torrentvista.com...
"Note: This is beta code and should not be used in a production environment or on a main machine in the home. Beta 2 is intended for developers, IT professionals and technology experts to continue or begin their testing of Windows Vista. Before you decide to use Beta 2, you should feel comfortable with installing operating systems, updating drivers, and general PC troubleshooting. Some risks of using beta operating systems include hardware and software incompatibility and system instability. If you have concerns about installing this beta software on your computer, we encourage you to obtain the final release version of Windows Vista when it is available in 2007."
"When you register for the Customer Preview Program you will receive the Beta 2 release plus Windows Vista Release Candidate 1 (RC1) — the next major pre-release of Windows Vista — when it is available later this year. The information on this page pertains to both Beta 2 and RC1.
The Customer Preview Program is available in a limited quantity both through download and DVD kit ordering. Once the allotted quantity has been reached the program will be closed and no new orders will be accepted."
Alors qu'on arrête:
1) C'est réservé à des personnes enregistrées chez MS
2) c'est limité en nombre d'accès
3) Il y a toutes les chances que ce ne soit plus accessible à l'heure qu'il est.
Conclusion: l'explosion du nombre de personnes parlant ici de vista ne peut être que FORCEMENT issu du piratage... donc no response de ma part. Si c'est une version officielle: go Microsoft et demandez le support, c'est le but d'une beta!