Backups & restore points · Time Machine and backup strategy
How can I be sure my backups will actually restore?
Short answer: Look for Protected on each set — it means the latest version passed an integrity check — and occasionally export a file from Versions… to prove a restore works. Check re-verifies on demand.
Two habits cover it. First, look for Protected on each set — that badge only appears once the latest version has passed an integrity check. Second, every so often do a small real restore: open Versions…, Browse Files…, and Export… a file to a scratch folder to see it come back.
You can also press Check at any time to verify what's stored without making a new version.