Not quite what this thread was about, Hradcany, but pretty much common knowledge I think (glad you figured it out, though). If you have virus scan installed, make sure it isn't scanning is the first...

Updating the firmware on my SSD seems to have fixed my issue; thanks!

No, this is after boot-up; the task manager will peg the HDD usage at 100% but no listed processes are using the HDD. It happens at random while I'm using my machine; not just at boot-up.

I've...

I have the same issue; I've disabled defrag (I have an SSD, it shouldn't be trying to defrag it anyway), I've disabled the Windows Search service, and I've disabled superfetch. I've also modified the...