Go to Tests > Surface Test > Read Test . Run this overnight. The software will map every single sector. If you see "Weak Sectors" (orange), run the "Disk Repair" function immediately. Why You Cannot Trust Your Manufacturer's Tool Seagate has SeaTools. WD has Data Lifeguard. These are fine, but they only work on their drives. If you have a mixed environment (e.g., an Intel SSD for OS, a Toshiba HDD for storage, and a SanDisk external drive), you need a unified interface. Hard Disk Sentinel Pro 6.20 Final works with every drive, regardless of brand, interface (SATA, SAS, USB, NVMe, eSATA), or form factor (2.5", 3.5", M.2). Real-World Scenario: How HDSentinel Saved a NAS Consider this: A user has a Synology NAS with 4x 4TB drives in RAID 5. Without HDSentinel, they rely on the NAS's generic email alert. Unfortunately, the NAS reported "Healthy."
If your data has any value to you—financially, professionally, or sentimentally—the cost of a license is negligible compared to the cost of professional data recovery (which can run into the thousands of dollars). Hard Disk Sentinel Pro 6.20 Final
While free tools can tell you if a disk is dying, Hard Disk Sentinel Pro tells you when it will die and how to stop it . Version 6.20 Final represents the culmination of years of development, offering robust support for the latest SSD technologies while maintaining its legendary stability for spinning rust (HDDs). Go to Tests > Surface Test > Read Test