Lately, my 3-year-old mechanical hard drive has been louder than it usually is.
You can hear the sound it's been making more often here: https://vocaroo.com/i/s0aBAdQnIQaX
You may need to turn up your speakers to fully hear it.
Nothing is running in the background that would cause the activity. I even turned off indexing.
It doesn't make this noise all the time, but I'm hearing it more often. It's kind of annoying to hear, on top of troublesome.
Whenever I get my next tower, it's SSD for me.