Hard disks can be somewhat frustrating because in the end, they are rather complex devices and may be prone to technical failure. That's why regular monitoring and diagnostics of hard drives is essential in predicting potential break down.
HD Tune is a diagnostic tool which helps check the current status of your hard drive(s) whether they are external USB devices or physically built-in to your desktop or laptop computer. From the main menu of HD Tune, simply select the drive you want to check from the drop-down menu; you will be given immediate access to the current disk temperature which can be visible from the system tray.
The main and first tab of performance test performed by HD Tune contains the benchmark tests which can be accessed by clicking the Start button and checking the speed of transfer. Other information about your hard drive is available only when using the "Pro" non-freeware edition.
If you're looking for a free diagnostic tool, HD Tune is sufficient in providing some details about your disk drives. Unfortunately, the free version lacks so extra details which may come in handy.
From EFD Software:HD Tune download allows you to gather S.M.A.R.T.HD Tune Pro 5.00
is licensed as Shareware
for the Windows operating system / platform and can be used as a free trial until the trial period ends. HD Tune Pro is available to all software users as a free download (Shareware) with potential restrictions and is not necessarily the download of the full version.
HD Tune Pro Virus and Malware Tests:
For security reasons, you should also check out the HD Tune Pro virus and malware test
that has been uploaded; additional HD Tune Pro screenshots may be available, too.