Storage

How do I check hard drive health?

Updated 2026-08-14

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Quick answer

You can check hard drive health using built-in tools like CHKDSK on Windows or Disk Utility on macOS, or third-party software such as CrystalDiskInfo.

Monitoring your hard drive's health is crucial for data integrity and performance. Various tools are available depending on your operating system.

Steps

  1. 1

    Using CHKDSK on Windows

    Open Command Prompt as an administrator, then type 'chkdsk C: /f' (replace C: with your drive letter) and press Enter.

  2. 2

    Using Disk Utility on macOS

    Open Disk Utility from Applications > Utilities, select your hard drive, and click 'First Aid' to check the drive's health.

  3. 3

    Using CrystalDiskInfo

    Download and install CrystalDiskInfo, then run the program to view detailed health statistics and SMART data.

Checking Hard Drive Health on Windows

You can use the Command Prompt to run CHKDSK, or utilize third-party tools for a more detailed analysis.

Checking Hard Drive Health on macOS

Use Disk Utility to verify and repair disk permissions and check the health of your hard drive.

Using Third-Party Tools

Applications like CrystalDiskInfo or HD Tune provide detailed SMART data and health status of your hard drive.

Watch out for

  • Results from third-party tools may vary and should be interpreted carefully. Always back up data before performing repairs.

FAQ

What is SMART data?

SMART (Self-Monitoring, Analysis, and Reporting Technology) is a monitoring system that provides data on hard drive health and performance.

What should I do if my hard drive health is poor?

If your hard drive health is poor, back up your data immediately and consider replacing the drive to prevent data loss.

Can I check hard drive health without installing software?

Yes, both Windows and macOS have built-in tools (CHKDSK and Disk Utility, respectively) that do not require additional software.