Anniesse1 Said:
"optimize storage for MAC 10.11.6: I have followed these instructions Free up storage space on your Mac - Apple Support however, after chossing about this mac, selecting storage- I only see the storage bar showing how much space I have left BUT the option to MANAGE is simple no there on that screen."
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Clear Space:
Try clearing internal storage though use of the following:
What Space to Clear:
A. Clear Temporary Internet Files:
Clear your Temporary Internet Files(Cookies & Cache) of Safari:
Also...
B. Clean TV and Music Libraries:
Remove all unneeded files from your TV and Music Libraries. Full-Movies take up 2-4GB typically, and a bunch of those would take up a load of storage, ideally. So, if you have any movies that are not needed, then delete them.