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See used and available storage space on your Mac
See how much storage space is used on your Mac and how much space is available.
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If you see more than one disk in the Storage area of General settings, your internal disk has multiple volumes or containers. See See if your Mac shares space across APFS volumes for information about free space available in containers.
On your Mac, choose Apple menu
> System Settings, then click Generalin the sidebar. (You may need to scroll down.)
Click Storage, then click All Volumes.
Move the pointer over a color to see the amount of space each category uses. Light gray space represents free storage space.