Recently, I installed a new Western Digital Blue on my home PC. It was a replacement for the primary drive. I have noticed that after a Windows install, the drive is making some noises. They are not clicking noises, but rather a continuous soft grinding sound. The noise will increase if I am downloading something, or opening a document. I went to the WD website, and downloaded the diagnostic tool, and the drive passed. Does anyone else have any experience with these drives? This is the first WD HDD that I have owned, and I was wondering if what I am hearing is normal for a WD Blue HDD. Also, this is a new drive, and has never been used by anyone else. Thank you for your time, and I am looking forward to a reply.