Actually this is a really simple message from Norton.
Whenever I reformat my drive and reinstall my virus software (norton in this case), it always resets my settings so I always get alerted about HDD usage, CPU usage, and Memory usage.
If that message pops up again, just click on "Don't alert for this file anymore" and you should be fine.
Also, since I don't think you're overclocking, you shouldn't be worried about temperatures. Considering your CPU is only a month old, I doubt your heatsink would be filled with dust and/or your thermal compound drying up