What does Windows error code 4314 (ERROR_DATABASE_FULL) mean?

ERROR_DATABASE_FULL

The database is full.

ERROR_DATABASE_FULL is Win32 error 4314 (0x10DA) and belongs to bounded Windows database capacity.

Where the result appears

• A service database with a fixed allocation limit.
• Legacy registry-style or indexed storage used by a Windows component.
• An insertion or update that requires another database page.
• Maintenance that cannot reclaim enough internal space.

Likely causes

• the database reached its configured or format capacity.
• deleted records have not been compacted or reclaimed.
• runaway entries or retention policy consumed the available pages.
• the underlying volume lacks room for database growth or temporary maintenance.

Troubleshooting steps

• Record component and database path.
• Record logical record count, file size, and configured limit.
• Record free disk space and growth events.
• Record retention, cleanup, and compaction history.
• Record the exact insert or update that first failed.

What to verify

Verify whether the database reached its configured or format capacity. Check component and database path together with logical record count, file size, and configured limit.

Handling, retry, and recovery

Stop unbounded retries, preserve the database, remove data only through the owning component, and expand or compact it using supported tools. A raw file truncation can destroy indexes and recovery data.

Difference from nearby codes

The code describes database capacity, which can be reached even when the filesystem still has free bytes.

Practical example

A service retains historical entries indefinitely until its fixed database limit is reached.

References

• Microsoft: System Error Codes (4000–5999) — reference for error 4314.
• Microsoft: Storage management — reference for error 4314.
• Microsoft: Troubleshoot data corruption and disk errors — reference for error 4314.