Independent informational resource. Not affiliated with, endorsed by, or sponsored by Crystal Dew World or the developers of CrystalDiskInfo or CrystalDiskMark.

Current Pending Sector Count Explained

Pending sectors are areas a hard drive could not read reliably and has not yet conclusively remapped.

Independent resource: Independent informational resource. Not affiliated with, endorsed by, or sponsored by Crystal Dew World or the developers of CrystalDiskInfo or CrystalDiskMark. This page is educational and does not host software.

Pending does not necessarily mean permanent

A later successful write/read may clear a pending condition, or the drive may remap the sector if the problem persists.

Why backups come first

Repeatedly stressing a drive with unstable sectors before securing data can turn a manageable warning into data loss.

Look for change

If the pending count grows or appears alongside uncorrectable errors, treat that trend seriously.

External connections complicate diagnosis

USB bridges and power problems can create separate read issues. Confirm the connection path and, when safe, compare with the drive manufacturer’s diagnostic guidance.

Practical takeaway: interpret storage data in context, protect important files with independent backups, and compare trends rather than relying on a single screenshot.

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