Modern hard drives and SSDs continuously monitor their own health via SMART (Self-Monitoring, Analysis and Reporting Technology) — checking this status takes a minute and can warn you of a failing drive well before it actually dies.
Before You Begin
If the PC is showing symptoms like frequent freezing, slow file access, or unusual noises, back up important data before running any diagnostics — checking health doesn’t cause harm, but a drive already close to failing shouldn’t be left unbacked-up any longer than necessary.
Step 1 — Check basic SMART status
Run a quick SMART check
Open Command Prompt and run the wmic command shown below for a fast Pass/Fail read on overall drive health.
Step 2 — Run CHKDSK for filesystem-level errors
Scan for filesystem issues
Run chkdsk C: /f /r from an elevated Command Prompt — this checks for and can repair bad sectors and filesystem errors (schedules a scan on next restart for the system drive).
Step 3 — Use a manufacturer diagnostic tool for detail
Install the manufacturer's own utility
Tools like Samsung Magician, WD Dashboard, or CrystalDiskInfo (free, third-party) give far more detail than Windows’ built-in tools, including specific SMART attribute values and drive temperature.
Useful Commands
wmic diskdrive get statuschkdsk C: /f /rSet a recurring reminder to check drive health every few months on important machines — catching a gradual SMART attribute decline early gives you time to plan a replacement instead of reacting to a sudden failure.
Frequently Asked Questions
What does a SMART “Caution” or “Bad” status mean?
It means the drive’s own monitoring has detected attribute values outside normal thresholds — back up your data immediately and plan to replace the drive, even if it’s still technically working.
Conclusion
A SMART status check combined with CHKDSK takes just a few minutes and reliably surfaces most drives at risk of failure well before symptoms become severe.
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