LAlite — Mac storage first checks
Updated 21 September 2026
Full guide: https://lalite.org/mac-startup-disk-almost-full

Mac model and macOS version:
Exact warning and task that failed:
Available space before:
Largest storage category:

[ ] Save current work.
[ ] Confirm a usable backup of anything important.
[ ] Identify one recognised, unnecessary file or duplicate.
[ ] Check retained copies before deleting an original.
[ ] Review the Bin before emptying it; this is irreversible.
[ ] Recheck available space using the same storage view.
[ ] Retry the original task.

Change made:
Available space afterwards:
Did the task work?
What remains unresolved?

Do not delete unfamiliar Library or System files. On a managed Mac,
follow your organisation's rules. Remove personal details from screenshots
before sharing them with support.