Drive churn

On your Windows Vista computer, you notice that your hard drive access light is constantly blinking, even when your computer is idle. Which of these is the most likely cause of this constant drive access?

A) The hard drive is constantly retrying a bad sector on the hard drive

B) The computer is configured to constantly check the hard drive performance

C) The hard drive throughput can’t keep up with the data requests

D) Windows Vista is indexing the files on your hard drive

E) The blinking lights are a festive display of computing power