Duplicate files · Duplicates and Smart Care
Which duplicates does Smart Care offer to remove?
Short answer: Smart Care only uses results the background scan already found — it never scans itself — and skips any set with a copy modified in the last week. It keeps the recommended copy of each set, so it often offers fewer sets than the Duplicates window lists.
Smart Care is deliberately more cautious than the Duplicates window. It only uses results the background scan of your Mac has already produced — it never starts a scan of its own — and it leaves out any set where a copy was modified in the last week, since a recently changed file may still be in use.
For each set it offers, it keeps the same recommended copy the Duplicates window would. So it's normal for Smart Care to offer fewer sets than the window lists; the rest are still there for you to review by hand.