if you click the change advanced power settings there is also a setting for the hard drive

This setting is usually the culprit, but I would set both settings to never or this hard drive setting it saves as 0 minutes.

You can still give the computer rest by turning off when you close for the evening.

If you ask computer professionals, I think about half would suggest shutting off the computer every night and half would save keep it in a cool environment and never shut it off.