Hi! I have had my Seagate 3TB HDD for around 5-6 months. Around 1 month ago, the drive started disappearing in my PC, so I plugged it into my other PC and copied all my data over. I then reset the drive, and put all my data back. The drive has been running fine now for 2-3 weeks but now it has started disappearing and will not come back anymore. SeaTools FixAll Fast test failed. Please help!