First, let me say that I am not very technologically advanced. I may have a computer, but I do now know that much about it. Sure, I am #1 at using it, but some things confuse me.
If you are using a laptop and reading this, I would like you to look and let me know if you see your HDD light (hard drive indicator) on. For my laptop, it is right next to the spot where I plug in the power cord, and adjacent to the power indicator light. It will have a disk drawing above it. Mine does, at least. Is yours on? Maybe mine has always done this, but I recently noticed it has been flickering, like a lightbulb ready to go out. As I said, I have never looked at it before, so I wouldn't know if this is a new occurrence or old.
Is it expected for a hard drive light to flicker rapidly like this every now and then?
It is usually on solid when the PC is idle enough for the fan to go on.