How do you free up space on Macintosh HD to upgrade the OS

corleona Said:

"How do you free up space on Macintosh HD to upgrade the OS"

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Important Notes:

I. Upgrade Safely:

Back Up Prior to the Installation:

Create a Time Machine Backup prior to the install, that way, you can have something to restore your Mac from, should anything go wrong with the upgrade. Use an external hard drive that is at least 1.5 the total storage capacity as that of your internal hard drive.

II. Cleaning the Space:

A. 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.

Also..

B. Clear Temporary Internet Files:

Clear your Temporary Internet Files (Cookies & Cache) of Safari:

• Cookies perform remembrance of certain site-entered data.
• Cache keeps a snapshot of the last time you visited a site.

Go Here: Clear the History and Cookies from Safari on your iPhone, iPad, or iPod Touch - Apple Support