Hard Disk Sentinel Pro Edition Free Key

Hard Disk Sentinel (HDSentinel) is a multi-OS SSD and HDD monitoring and analysis software. Its goal is to find, test, diagnose and repair hard disk drive problems, report and display SSD and HDD health, performance degradations and failures. Hard Disk Sentinel gives complete textual description, tips and displays/reports the most comprehensive information about the hard disks and solid state disks inside the computer and in external enclosures (USB hard disks / e-SATA hard disks). Many different alerts and report options are available to ensure maximum safety of your valuable data.

Key Features:

  • Monitor and analyze the performance and health of hard disks, SSDs, RAID arrays, and USB drives.
  • Guard against catastrophic loss of data by knowing when your hard drive is failing.
  • In an instant, know the temperature of your hard drive, disk transfer speed, and other important data.
  • Detect and repair issues before they get worse.
  • Choose from a wide variety of alerts and reports

New Promo Version 4.50: (Updated on 3-Oct-2015)
Our previously shared promotional offer of Hard Disk Sentinel still works, but that license only works with version 4.20. Comss.info is currently offering free license of the updated version 4.50 of Hard Disk Sentinel. Access this URL to download the special pre-activated installer. (The setup does not require any license key for activation)

Older Version 4.20 Promo:
Download the full version license key using the official direct link*:

Download Hard Disk Sentinel Pro 4.20: hdsentinel_pro_setup420.zip [13 MB]

Activation Instructions: To activate your product,  install Hard Disk Sentinel Professional version 4.20, then click on “Help” -> “Enter registration key” -> “Load Activated Keyfile” -> browse and select the “HDSentinel.key” file you saved from the above direct link.

*(Please note that this promotion is organized by the developers of Hard Disk Sentinel for ‘Computer Swiat’ magazine readers in Poland. The license key seems to be working in other countries but it may not work in some.)


7 Responses to Hard Disk Sentinel Pro Edition Free Key

  1. Leo August September 11, 2014 at 12:02 am #

    Hmmm – the program is supposedly available as a promotion for a Polish magazine, but the registry key used to activate it appears to be in Chinese. Is it just me or is anyone else bothered by a registry key they can’t read?

  2. Leo August September 11, 2014 at 12:06 am #

    And to top it off, the publisher of the software is a Hungarian company. I may have to pass on this one.

  3. Phùng Hữu Long September 11, 2014 at 5:58 pm #


  4. Ant September 12, 2014 at 12:31 am #

    Why no v4.50?

  5. backdoor September 12, 2014 at 1:08 am #

    Email Subscription Confirmed!

  6. yoflyboys September 13, 2014 at 4:56 am #

    works fine ……. just don’t update, the it won’t register.

  7. ryan September 13, 2014 at 9:04 am #

    program is pretty decent, 4.40 is the version I received.