I have few hdd`s. They was in RAID in last comp. I destroy RAID and reformated when I bought new comp. Now I have 1xSSD (Windows8 - C) and 2x 512GB HDD (D & E) + 1TB HDD (F). RAID is OFF. Few days ago I`ve heard noise humming but I thought that is bad ventilator. In mean time I also run Linux Ubuntu Live from USB but I didn`t install anything I would like only to see how it looks (without instalation). After closing Linux i go to Windows and I`ve noticed that my drive D was dissapeared. There was note about signature collision. I`ve clicked online and I saw clone of E so D&E was same (even recovery files) and all my D data was lost. No recovery software works for me. That process should be on background becouse I think that cloning of 500GB is not a second. Is there any help for me in that case? I`ve lost all my D thata which was important to me. I know that I`m stupid but I didn`t have any backup. I`m working helping other people and I can`t help myself. I think there was some drive malfunction and after rise there was RAID auto on one drive checked in. This should be some auto decision of Windows to clone E immidiately on D. I think it`s hopeless situation for recover but please tell me that is some hope.