Keeping an eye on the hard disk temperature and other SMART properties is very much needed. HDD Guardian is a freeware tool for Windows which allows you to monitor your hard disk for S.M.A.R.T properties. The purpose of HDD Guardian is to provide a graphical interface to smartctl, part of the S.M.A.R.T. Monitoring Tools, in order to make this nice utility accessible to all Windows users. The tool alerts you in case of imminent failure, temperature threshold or vital parameter change.
The application has a very neat interface and also shows the HDD information along with the current temperature. When there is a alert, it displays it in the system tray.
HDD Guardian will be useful free tool for managing your hard disk drive and getting information about its current status.