First in my first tried I scrub up my windows installation and then I removed all partition and started all over again. This time I did install W7 ultimate with no problem with the only issue that if try to install it from a usb stick you better use the usb2 port. Ok know i tried to install ubuntu and It doesn't reconize my windows partition and show everything free. In my bios the EFI is on and also de AHCI for the sata drivers. But know i just want to know if there any way to install it without messing my W7 installation. Also i wonder why is so hard to make bootable cd to work with this machine. Thanks in advanced!!!

PD. IF I turn off the AHCI then windows won't boot.