Cleanup

Learn what caches, logs, temporary files, developer data, and other cleanup categories contain before removing them.

Scan supported generated data, review categories, and confirm a small first cleanup.

Remove supported app caches while preserving offline content, active work, and data that would be costly to recreate.

Decide which supported logs can be removed and preserve evidence needed for crashes, support, and system diagnosis.

Distinguish abandoned temporary data from active work and preserve recovery information after an application crash.

Understand junk categories, System Trash, logs, mail attachments, and update caches before cleaning.

Review supported build products, indexes, archives, simulator data, and device support files before reclaiming developer storage.

Review locally cached Mail attachments and supported update files without interrupting active downloads or updates.

Understand Trash permissions, inspect deleted items, and empty supported Trash locations carefully.

Learn why estimated, selected, removed, and newly available storage numbers may not match exactly.

Understand normal cache recreation and identify applications that generate unusually large data repeatedly.

Quick answers about scans, selections, cache recreation, permissions, Trash, Mail attachments, and cleanup totals.

Compare common generated-data types, their purpose, likely recreation behavior, and reasons to preserve them.

Interpret files that changed, disappeared, remained in use, lacked permission, or lived on unavailable storage.

Choose a cleanup schedule based on storage pressure and actual generated-data growth rather than a fixed daily routine.

Create enough working space without removing active update data, current diagnostics, or files needed for recovery.

Avoid removing cached attachments or media that must remain available without a network connection.

Keep the drive mounted, understand per-volume Trash, and verify recoverable items before permanent removal.

Preserve recovery data and verify an updated app before removing temporary files, diagnostics, or old installers.

Coordinate protected cleanup that can affect applications, diagnostics, updates, or resources used by multiple accounts.