Which action is recommended when a SMART test reports unreadable sectors?

• A. Consider the drive as failing hardware and stop using it.
• B. Ignore the unreadable sectors; they are typically harmless.
• C. Wipe the drive and reinstall the OS.
• D. Swap cables and run a quick test only.

Answer: (A)

Unreadable sectors in a SMART test signal a hardware fault. When the drive reports sectors that can’t be read, it usually means the media is failing or damaged, and reliability is compromised. This isn’t something you fix with a wipe or a reinstall, and it isn’t something you should ignore. The safest course is to treat the drive as failed hardware: back up whatever data you can from it now, then replace the drive and restore from the backup. Continuing to use the drive risks sudden data loss. Swapping cables or running a quick test won't address the underlying hardware issue, so they aren’t the right actions in this scenario.