HDD Guardian is a free program for Microsoft Windows devices that monitors the health status of hard drives using S.M.A.R.T technology.
Hard drives are probably the most important hardware components of electronic devices. The key reason for that is that they store data that users created, modified, downloaded or processed in other ways.
A hard drive failure could lead to data corruption which in turn would make data on the drive inaccessible. Backups are the prime option to protect against failing hard drives or data corruption on drives.
But computer users may also be proactive, by monitoring hard drives. The main idea behind this is to get notified in advance of impending hard drive failures to backup all important data and replace the drive.
HDD Guardian is a free program for Windows that monitors hard drives and Solid State Drives connected to the system.
Note: The program requires the Microsoft .NET Framework 4.5.
It uses S.M.A.R.T. technology for that which all modern hard drives support. Basically, what S.M.A.R.T. does is provide an interface that programs like HDD Guardian can tap in to retrieve information about the drive's status.
Among the many parameters are temperatures, error rates, bad sectors, ATA errors.
HDD Guardian displays all connected storage devices, SSD and HD, in its interface on start. Each device is listed with its name and last seen date. Additionally, the temperature, bad sectors, and ATA errors, and whether S.M.A.R.T. checks have been passed.
The information alone may point at a drive that is failing already or about to.
Information for the selected drive is displayed on the right of the table right on the program's start page. This includes basic information such as the manufacturer, location, model, interface or size. A click on the health tab displays reliability information that highlight reallocated sectors and events, pending sectors and uncorrectable sectors among other information.
You may double-click on a drive to open the manage tab for it. The page lists various management related options on the left. It starts with a list of S.M.A.R.T attributes, events and temperatures.
Events may be most interesting as it lists value changes, for instance when the temperature increases or other S.M.A.R.T. values increase or decrease.
The setup group of options gives you some control over certain hard drive features provided that the drive supports it. You may change Advanced Acoustic Management and Advanced Power Management parameters, configure a standby timer, or set read/write options.
You may use HDD Guardian to run tests on drives. Tests may run from a couple of minutes to hours. The program supports four tests that you may run:
HDD Guardian displays popup messages on device failures or excessive temperatures. You may change that and many other options in the settings.
For instance, instead of displaying a popup message, you may have the program power off the computer, or play a sound instead.
You may also set it up to run on Windows start, change device update intervals, or change attributes tracking and warnings. Settings can be imported and exported.
HDD Guardian is a well designed hard drive monitoring program for Microsoft Windows device. You may use it to run occasional test or keep it running all the time in the background to be warned when the program detects issues with one of the connected drives.
HDD Guardian 0.7.1 was released on January 5, 2017. The new version makes several changes to the program, including the requirement of running it with elevated privileges.
Other changes include support for Cherry Trail base boards, hardware details on the system page, an option to run drive benchmarks from the same page when a logical drive is selected, and a reliability system for SCSI devices and tracking of SCSI parameters.
Update: We have uploaded the latest version of HDD Guardian to our own server. The project was hosted on Codeplex, but Codeplex is shutting down and it is unclear whether there will be a new home for HDD Guardian.
You may download the latest version of HDD Guardian with a click on the following link: HDD Guardian
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