Check a disk's health (SMART)

Spot a failing disk before losing your data.

1. Health status of the physical disks:

   Get-PhysicalDisk | Select-Object FriendlyName, MediaType, HealthStatus, OperationalStatus

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2. Any value other than "Healthy" is a reason to back up immediately.
3. For SMART details (reallocated sectors, temperature, wear), install CrystalDiskInfo (see "Recommended software").
4. Check the file system (needs a restart for the system disk):

   chkdsk C: /scan

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5. An SSD showing high wear or a growing number of reallocated sectors should be replaced.