Make Sure You Have Room for the Update
You should have 8GB of free space on your Mac to install the OS X El Capitan update.
Check to see how much storage you have in Finder by clicking Go -> Computer -> two finger click on Macintosh Hard Drive -> Get Info.
While Apple only suggests 8GB, it is a good idea to free up more space than that. Aim for at least 15GB free to handle moving files around. Here's how to cleanup your Mac hard drive.
5 Reasons to Pre-Order Call of Duty: Modern Warfare & 3 Reasons Not To
<>5 / 8Pre-Order if You Want the Dark EditionGameStop offers a $200 Call of Duty: Modern Warfare Dark Edition as an...
9 Things to Do Before Installing macOS Catalina
<>5 / 9Research macOS Catalina FeedbackThe macOS Catalina betas offered a period of testing and with it, there is already a lot...