HDD health & failure signs
Pending sectors, noise, and when CHKDSK is not a SMART substitute.
Guides hub
HDD, SSD, USB/NAS, and alerts
Problem-first reading paths. harddisksentinel.app is independent educational material — not the vendor. Official software: hdsentinel.com.
SSD wear, heat, and throttling
TBW pacing and why peak temperature during writes matters more than idle.
USB enclosure & NAS SMART gaps
Bridges that hide attributes — what you can still trust.
Alerts, SMART, then backup
Read the warning, copy data first, diagnose second.