Why Is My SSD S.M.A.R.T. Errors?

Quick Answer

SSD S.M.A.R.T. errors usually mean the drive is detecting bad blocks, controller failures, or excessive wear, most often pointing to imminent drive failure. Back up your data immediately, then run diagnostics to confirm whether the drive needs replacing or just a firmware update.

What S.M.A.R.T. Errors Actually Indicate

S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is the SSD's internal health monitor. When it flags an error, attributes like Reallocated Sectors Count, Wear Leveling Count, Reported Uncorrectable Errors or Available Spare are crossing predefined thresholds. The most common trigger on consumer SSDs in SA is high write endurance from running Windows pagefile, browser cache and games on a single small drive, which accelerates wear faster than expected. Power events from loadshedding without a UPS are the second-biggest cause.

How to Diagnose the Severity

Download CrystalDiskInfo or the manufacturer's tool (Samsung Magician, WD Dashboard, Crucial Storage Executive) and check the specific failing attribute. If "Available Spare" or "Percentage Used" is below 10% remaining, the drive is end-of-life. If "Reallocated Sectors" appeared suddenly with no warning, you're likely looking at a controller fault. NVMe drives also expose "Critical Warning" flags via nvme-cli on Linux, and any non-zero value there means data loss is imminent.

What to Do Next

First, back up everything to another drive or cloud immediately, and don't reboot more than necessary, because failing SSDs can drop offline permanently between power cycles. Second, update the drive firmware via the manufacturer tool, since spurious S.M.A.R.T. flags occasionally clear with a firmware patch when the issue is software-related rather than hardware. Third, if the drive is still under warranty (most quality SSDs at Evetech ship with 3 to 5-year cover), initiate an RMA before it dies completely and the data becomes unrecoverable. Replace with a quality NVMe Gen4 or Gen5 drive sized for your real workload, ideally with a separate drive for OS and another for games or projects. Evetech offers free SA delivery on storage upgrades and stocks reliable brands like Samsung, WD and Crucial.

Frequently Asked Questions

Can I keep using an SSD with S.M.A.R.T. warnings?

For non-critical data, yes, briefly. For your OS or anything important, replace it now. S.M.A.R.T. warnings rarely improve.

Does loadshedding actually cause S.M.A.R.T. errors?

Yes. Sudden power loss during writes can corrupt SSD mapping tables and trigger uncorrectable error counters. A UPS is cheap insurance.

Will reformatting fix S.M.A.R.T. errors?

No. S.M.A.R.T. tracks physical drive health, which formatting can't repair. Bad blocks don't go away with a fresh partition table.