Download HDDScan

HDDScan is a free, portable hard drive diagnostic tool that tests the health of your HDD, SSD, USB flash drive, or RAID array. It reads S.M.A.R.T. data, performs surface scans, and runs temperature monitoring to give you a clear picture of your storage device’s condition.

Designed for both casual users and IT professionals, HDDScan can detect bad sectors, read/write errors, and early warning signs of drive failure before data loss occurs. It supports a wide range of drive interfaces including ATA, SATA, NVMe, SCSI, and USB.

With its portable design requiring no installation, HDDScan is a must-have utility to keep on your USB drive for quick storage health checks on any Windows computer.

Key Features

• Reads and displays full S.M.A.R.T. data for early failure detection
• Surface scan tests for bad sectors and read errors across the entire drive
• Real-time temperature monitoring with alert thresholds
• Supports HDD, SSD, NVMe, USB flash drives, and RAID arrays
• Linear read, verify, and erase tests for comprehensive diagnostics
• Detailed drive information including model, firmware, and serial number
• Portable — no installation required, runs directly from executable

How to Install

1. Click the download button above to get the HDDScan archive.
2. Extract the ZIP file to any folder or USB drive.
3. Run HDDScan.exe directly — no installation required.
4. Select your drive from the dropdown menu at the top.
5. Choose a test type (S.M.A.R.T., Surface Scan, or Temperature) and click Start.