HDD random stops and reloading

[enigm@tic]

Randomly when using the computer, all programs and OS will freeze and I can hear the hdd spinning and loading up for a few seconds then it returns to normal. It's a new caviar black and using windows 7 - could it be a faulty drive or is it a setting I need to change?

 

[D-Rocks]

I believe its the Operating system (OS) but im not 100% sure. My dad just bought a brand new computer with windows 7 and its doing the same thing.