CrystalDiskInfo Shows Caution: What to Check First
A Caution status means you should inspect the underlying attribute instead of treating the label as a diagnosis.
Start with the attribute, not the color
A summary warning is useful because it draws attention to a health-related value, but the next step is identifying exactly which attribute triggered it. HDD warnings often involve reallocated or pending sectors; SSD/NVMe devices may expose different health fields.
Protect important data before testing
If the drive contains anything you cannot replace, make sure another copy exists before running stress tests, repair tools or long scans. Troubleshooting should never be allowed to become the event that destroys the only copy.
Check whether the value is changing
A stable historical counter can mean something different from a counter that increases every day. Capture the current value, then compare later observations under normal use.
Rule out connection problems
External enclosures, USB bridges, unstable cables and power problems can create confusing symptoms or hide some health data. Identify the exact connection path before interpreting a missing field.
When to escalate
Rising media-error counters, repeated disconnects, read failures or unusual mechanical sounds justify replacing the drive or using the manufacturer’s diagnostic process rather than waiting for the status to become worse.