Hi ilko_t, I am trying to install from the USB. I read the article on the download page it said I can't have 2 win7 source on the same partition. I read another article about multiple source on the same partition, but I don't don't know how to do it. I am having the asrocks 770 extreme 3 with SATA drive, i tried both IDE and AHCI mode, all the source on the 1st partition on USB flash can see my HD attached on the Mobo but not the source on the 2nd partition.