{"id":"freeing-space.snapshot-vs-time-machine-backup","url":"/faq/freeing-space/snapshot-vs-time-machine-backup","category":{"id":"freeing-space","title":"Freeing up space"},"subcategory":{"id":"snapshots-held-space","title":"Local snapshots and held space"},"question":"Does reclaiming local snapshots affect my Time Machine backups?","alt_questions":["Difference between a snapshot and a Time Machine backup","Will deleting snapshots delete my backups?","Local snapshot vs backup drive","Are my Time Machine backups safe?","Reclaim old backups Time Machine"],"short_answer":"No. Local snapshots are short-term copies on your startup disk; Time Machine backups live on your backup drive. Storage Studio only thins local snapshots and prefers ones already backed up.","answer_markdown":"No. A local snapshot is a short-term copy macOS keeps on your startup disk so it can roll back recent changes; your Time Machine backup is the full history saved on your backup drive. Storage Studio only ever thins the local snapshots — your Time Machine history is left alone.\n\nIt also prefers deleting snapshots that are already saved to your Time Machine destination, so you don't give up a restore point that exists nowhere else. See [the snapshot icons](/faq/freeing-space/what-do-the-snapshot-icons-mean).","answer_html":"

No. A local snapshot is a short-term copy macOS keeps on your startup disk so it can roll back recent changes; your Time Machine backup is the full history saved on your backup drive. Storage Studio only ever thins the local snapshots — your Time Machine history is left alone.

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It also prefers deleting snapshots that are already saved to your Time Machine destination, so you don't give up a restore point that exists nowhere else. See the snapshot icons.

","answer_text":"No. A local snapshot is a short-term copy macOS keeps on your startup disk so it can roll back recent changes; your Time Machine backup is the full history saved on your backup drive. Storage Studio only ever thins the local snapshots — your Time Machine history is left alone.\n\nIt also prefers deleting snapshots that are already saved to your Time Machine destination, so you don't give up a restore point that exists nowhere else. See the snapshot icons.","tags":["time machine","local snapshots","backup"],"related":[{"id":"freeing-space.can-i-move-snapshots-to-my-external-drive","question":"Can I move local snapshots to my external drive?","url":"/faq/freeing-space/can-i-move-snapshots-to-my-external-drive"},{"id":"freeing-space.is-it-safe-to-delete-a-local-snapshot","question":"Is it safe to delete local snapshots with Storage Studio?","url":"/faq/freeing-space/is-it-safe-to-delete-a-local-snapshot"}],"applies_to":"all","last_reviewed":"2026-10-01","title":"Does reclaiming local snapshots affect my Time Machine backups? — Storage Studio FAQ","description":"No. Local snapshots are short-term copies on your startup disk; Time Machine backups live on your backup drive. Storage Studio only thins local snapshots and prefers ones already backed up.","crumbs":[{"name":"Home","path":"/"},{"name":"FAQ","path":"/faq/"},{"name":"Freeing up space","path":"/faq/freeing-space/"},{"name":"Does reclaiming local snapshots affect my Time Machine backups?","path":"/faq/freeing-space/snapshot-vs-time-machine-backup"}],"jsonld":{"@context":"https://schema.org","@type":"FAQPage","url":"https://storagestudio.us/faq/freeing-space/snapshot-vs-time-machine-backup","inLanguage":"en","dateModified":"2026-10-01","mainEntity":[{"@type":"Question","name":"Does reclaiming local snapshots affect my Time Machine backups?","alternateName":["Difference between a snapshot and a Time Machine backup","Will deleting snapshots delete my backups?","Local snapshot vs backup drive","Are my Time Machine backups safe?","Reclaim old backups Time Machine"],"acceptedAnswer":{"@type":"Answer","text":"No. A local snapshot is a short-term copy macOS keeps on your startup disk so it can roll back recent changes; your Time Machine backup is the full history saved on your backup drive. Storage Studio only ever thins the local snapshots — your Time Machine history is left alone.\n\nIt also prefers deleting snapshots that are already saved to your Time Machine destination, so you don't give up a restore point that exists nowhere else. See the snapshot icons.","url":"https://storagestudio.us/faq/freeing-space/snapshot-vs-time-machine-backup"}}]},"fragment":"
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Freeing up space · Local snapshots and held space

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Does reclaiming local snapshots affect my Time Machine backups?

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Short answer: No. Local snapshots are short-term copies on your startup disk; Time Machine backups live on your backup drive. Storage Studio only thins local snapshots and prefers ones already backed up.

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No. A local snapshot is a short-term copy macOS keeps on your startup disk so it can roll back recent changes; your Time Machine backup is the full history saved on your backup drive. Storage Studio only ever thins the local snapshots — your Time Machine history is left alone.

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It also prefers deleting snapshots that are already saved to your Time Machine destination, so you don't give up a restore point that exists nowhere else. See the snapshot icons.

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Last reviewed

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