I have a 500GB HDD and a 128GB SSD with Windows 7 preinstalled on the SSD. I have the SATA mode set to AHCI but how do I install Ubuntu on my HDD with out deleting anything on it or my SSD? I already have the newest Ubuntu version (12.4) downloaded to a flash drive and my Motherboard is a Dual UEFI BIOS which means that I can not use WUBI to install Linux the easy way. Thanks for any help.