Hi, i found a problem with my script, maybe someone can help me. When i'm on Winpe i must set Windows HDD to T: because When my disks doesn't have partitions, my pendrive is C: But after installing, my windows is installed on T: and not C:. This is my script: %usb%\winntsetup\WinNTSetup_x64.exe NT6 -source:l:\sources\install.wim -WimIndex:1 -syspart:S: -tempdrive:T: -Sysletter:T -setup -reboot Thanks