HDDScan v3.3 Free Hard Drive Testing Tool Review

A Full Review of HDDScan, a Free Hard Drive Testing Tool

Screenshot of HDDScan v3.3
HDDScan v3.3.

HDDScan is a portable hard drive testing program for Windows that can run various tests on all sorts of internal and external hard drives. The program is easy to use and all the optional features are easily accessible.

Important: You may need to replace the hard drive if it fails any of your tests.

Download HDDScan
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Note: This review is of HDDScan v3.3, released on January 3, 2014.

Please let me know if there's a newer version I need to review.

More About HDDScan

HDDScan is completely portable, which means you need to extract the files to make it work instead of installing it to your computer.

After downloading the ZIP file, extract it using Windows' built-in extractor or some other free file extractor program. Several files are extracted along with the main HDDScan program. To launch the program, just open the HDDScan executable file.

To test a hard drive with HDDScan, choose a drive from the drop-down area under "Select Drive," and then click the round New Task button in the center of the program. From here, you can access all the tests and features that are offered. Every new test will be added to the Test Manager section at the bottom and queued to launch when each previous test is finished. You can pause or delete tests from this part of the program.

HDDScan can run tests against devices like PATA, SATA, SCSI, USB, FireWire, or SSD connected hard drives to check for errors and show SMART attributes.

RAID volumes are also supported but only a surface test can run.

Some parameters, such as a hard drive's AAM (automatic acoustic management) details, can be changed. You can also use HDDScan to start or stop the spindle of various types of hard drives and identify information such as the serial number, firmware version, supported features, and model number.

You must be running Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, Windows 2000, or Windows Server 2003 to use HDDScan.

HDDScan Pros & Cons

There aren't many disadvantages to this hard drive testing program:


  • Scans many different types of storage devices
  • Not difficult to use
  • SMART reports can be saved to a file like an MHT or TXT file
  • Command line support
  • Doesn't need to be installed (portable)


  • Only runs on Windows operating systems
  • No option to install it to your computer
  • No built-in tips, descriptions, or help documents

My Thoughts on HDDScan

HDDScan is really easy to use. Once the program files are extracted, just open the application to immediately launch the program and start running hard drive tests.

It's great that you don't need to install HDDScan to use it, but it's also nice to at least have the option to install software to your computer. Unfortunately, HDDScan doesn't.

Something else I like is that there are progress bars to indicate how far along a test is from completion. You can see when the task started and you'll see when it ends, and double-clicking an active test shows the progress. This can be particularly helpful with really thorough tests that are done on large hard drives.

Some hard drive testing software run from a disc and can therefore be used to check a hard drive running any operating system. While HDDScan doesn't require a particular OS to be on a disk to check it for errors, it can only be used from a Windows machine, which means you'll likely only be scanning other Windows hard drives with this program.

Another thing I don't like is that HDDScan just shows the model and serial number as the drives from the selection, which makes it difficult to understand which one is the drive you want to run tests on. On this note, there also aren't any descriptions of the tests so you know what the differences are, which would be nice to have included.

All that said, it's a great hard drive testing tool and I highly recommend it.

Download HDDScan
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Note: Once you've extracted the installation files, open the file called "HDDScan" to run the program.