I've created and attached a vdisk file using this command: Code: diskpart create vdisk file="C:\Windows 7.vhd" type=fixed maximum=15360 sel vdisk file="C:\Windows 7.vhd" attach vdisk create partition primary active format fs=ntfs assign letter=X Then i've applied a Windows 7 Ultimate x64 image (D: is mounted ISO letter): Code: imagex /apply /check D:\sources\install.wim 4 X: But of course i need to make it bootable in order to use native VHD boot functionality. I remember i need to use bcdedit but i don't know the command to run. Any help would be much appreciated