Hello i'm new of this forum. I'm italian graphic designer and i have three years of my work on a seagate barracuda 7200.11 (st3500820as - firmware sd25). The hard disk in block and return I/O error and error 1117 error. This guide is for me? Can i recover my data? Thans a lot. ps. the hd make a little click sound and sometimes the pc seen it as 0 gb and somethimes 2 TB.