I own two drives. I one is 500GB Samsung drive which is the primary one running operating system. The second one is a 1TB western digital drive which I kept for data backup. But I found it slow. I do not thing, it is working on that speed which I found at the start. The drive is just 2 months old. I added one more drive of 1Tb from samsung. The first two drives are working but the second one 1TB western digital is slow. I am looking for some fix for that. The third drive is giving ntfs partition error. I did not begin with any installation and setup. I want to use this drive for my operating system and others will be for data. So need some better solutions to fix them both. Thanks.