1) Down load Manuf HDD utility and wipe the disk.
2) You can try Windows 7 Dos Diskpart command - READ UP ON IT before using (ie google diskpart command).
Also to see the switches (best to use google) you can type "diskpart /?" from the dos prompt
It looks to me like the guy is right! It was part of a raid array. But, he should still be able to re-initialize the disk, re-partition and re-format, etc. i would go in atry to delete the existing partition.........Then, re-partition, etc. that worked for me last time I had this issue. I used Acronis Disk Director. Good luck
I tried several things including swapping cables, sata ports on the mobo as well as DBAN and other utilities. I think the drive itself is just dead. Two out of three is not bad at all and I won't complain. I'll just have to take the plunge and splurge on a new drive.