Concept illustration of an unbranded SSD, a magnifying glass and a backup arrow toward separate storage.

How to Check SSD Health: Warnings, Wear and What to Do

Check an SSD’s health by identifying the exact drive, reading its reported warnings and wear indicators, and choosing an action based on both the report and the symptoms. If files are disappearing, reads fail or Windows reports a critical warning, protect the data before running tests. A green label or “99% health” is not a guarantee that every file is safe. Start with the situation, not a benchmark Critical warning, read-only state or repeated read errors: stop avoidable writes and back up readable important files to separate storage. If irreplaceable files cannot be read reliably, stop repeated scans and consider professional recovery. Working normally, but the health percentage has fallen: save the current report and investigate the field behind that number. Wear is not a remaining-days clock. The SSD is missing or Windows asks to format it: use our drive-detection guide first. Formatting is not a health check, especially when the drive should contain data. For a failing drive, do not start with CrystalDiskMark, Secure Erase, firmware flashing or a repair command that writes to the disk. Finding out how fast it can write matters less than preserving the only copy of your files. ...