I bought a new Seagate Barracuda 1TB 7200rpm hard drive to where I cloned about 400 gigabytes of stuff from my old Samsung hard drive. Everything works fine, windows boots up and so on. Then I went on Steam and started downloading a game and it constantly kept saying "Busy writing to disk" which has never happened to me on the Samsung drive. Also when I benchmark the old Samsung drive on HD Tune Pro the read graph is stable and kind of resembles a heartbeat and never goes to 0 mb/s on the read. But now with the Seagate it goes all over the place and even hits 0 mb/s what explains the problems with Steam downloading. So what's the problem here and what should I do?