Actually in my computer I have installed the trial version of Windows 7 Ultimate 64 bit. I wonder how the migration will happen to the official version. This last will it overwrite the data and information on my hard drive? How all this going to happen. I am not a pro computer and therefore, I am very afraid of losing everything. Thank you in advance for your answers. And also here I wanted to know that will I lose the RAID 10? Should I use a professional for the installation?