It looks like you're not the first to run into this problem.
Thanks for your reply.
I did find this method, i tried it but it didn't work.
I tried to provide any available driver marked as compatible during installation (ahci, chipset), but windows seems to be looking for something else...
Any idea ?
Not sure what else to look for. A corrupted ISO image perhaps - does this USB stick work correctly to begin the OS installation on a different system?
Perhaps another community member has some ideas; you may also want to post this question to Microsoft's WIndows 7 Installation forum at http://answers.microsoft.com/en-us/windows/forum/windows_7-windows_install.
You were totally right about the corrupted ISO.
Even if my USB key was booting correctly, i tried to redownload the ISO.
To my surprise, the file size was different (the ISO was bigger), and it installed flawlessly
Thanks again !