I use SpeedFan for it's "S.M.A.R.T." tab and the ability to check the health of my hard drives. Used it a several machines in the past but on the newest one I have there are no hard disks listed. Is it because I have an SSD drive now? Is that known to cause problems? I checked the BIOS and the SMART option is on.
You need to run the program as an administrator.
Simply right click on the program and start it with "Run as administrator."