Hardware⏱️ 3 min read📅 2026-06-11

How to Fix: High S.M.A.R.T read error rate

High S.M.A.R.T read error rate on Seagate ST9750420AS HDD, potential for failure.

Quick Answer: Consider replacing the hard drive to prevent data loss and ensure system stability.

A high S.M.A.R.T read error rate on your Seagate ST9750420AS HDD indicates an increase in errors that are not successfully corrected by the hard drive's built-in error correction mechanisms. This can be frustrating and may lead to data loss or corruption if left unchecked.

Fortunately, a high read error rate does not necessarily mean the hard drive is failing immediately. However, it is essential to investigate and address the issue promptly to prevent potential data loss.

💡 Why You Are Getting This Error

  • The primary cause of a high S.M.A.R.T read error rate is physical wear and tear on the hard drive's mechanical components, such as the heads or platters. Over time, these components can become worn out, causing errors in reading and writing data.
  • Another possible reason for a high read error rate is firmware issues or software conflicts that may be affecting the hard drive's performance. In some cases, the hard drive's firmware may need to be updated or replaced.

🚀 How to Resolve This Issue

Run a diagnostic test using tools like CrystalDiskInfo or HD Tune

  1. Step 1: Download and install a reputable disk diagnostic tool, such as CrystalDiskInfo or HD Tune.
  2. Step 2: Launch the diagnostic tool and select the Seagate ST9750420AS HDD from the list of detected drives.
  3. Step 3: Run the diagnostic test to identify any errors or issues with the hard drive.

Check for firmware updates and perform a clean installation

  1. Step 1: Visit the Seagate website and check if there are any firmware updates available for the ST9750420AS HDD.
  2. Step 2: Download the latest firmware update and follow the instructions to install it on the hard drive.

✨ Wrapping Up

To summarize, a high S.M.A.R.T read error rate is an indication of potential issues with your Seagate ST9750420AS HDD. Running a diagnostic test using tools like CrystalDiskInfo or HD Tune can help identify the cause of the issue. If the problem persists, checking for firmware updates and performing a clean installation may resolve the issue. However, if you are still unsure about the hard drive's health, it is recommended to consult with a professional technician or consider replacing the hard drive with a new one.

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