CrystalDiskInfo – Sought-after hard drive health monitor

The data stored in hard drive is almost always important (also vital for few guys), so it's necessary to regularly check their health status. CrystalDiskInfo is an open-source, free hard disk detection tool from Japan. It can provide comprehensive health info of HDD/SSD through reading its S.M.A.R.T. data (which can be used to monitor and analyze the health condition of hard drive in real time).