Mac OS X El Capitan: Being the 12th major release of macOS, Mac OS X El Capitan belongs to the Macintosh-Unix family of OS.It was majorly released for server OS for Macintosh computers and Apple Inc.’s desktop. Being the successor of OS X Yosemite, it mainly focuses on stability, performance, and security.There is a history in its name. The Steps for Upgrading to Mac OS X El 10.11 Capitan. The following is steps for upgrading to Mac OS X 10.11 Capitan: Visit the Mac App Store. Locate the OS X El Capitan Page. Click the Download button. Follow the simple instructions to complete the upgrade. For users without broadband access, the upgrade is available at the local Apple store.

If you have a mid 2009 MacBook Pro, you can't update the OS. To update, you need a MacBook Pro (Mid 2010 or later) Model 6.2 and higher.

If you are careful about what you download and where you search on the Internet, your computer is useable without the latest security updates. My last computer had a 10.6 partition which I used every night. That was after El Capitan was released, so the OS was 5 versions behind. By being careful, I never had any problems.

Mac Os El Capitan X 10.12 Update

I would make sure that you had at least 2 separate backups on 2 separate drives in case you have problems. That will allow you to recover.