Apple
10 Things to Know About the OS X El Capitan Update
OS X El Capitan Downgrade | |||||||||||
If you upgrade to OS X El Capitan and you find out that your computer isn't up to speed, you can downgrade back to OS X Yosemite. This is easiest if you have a Time Machine backup, so we highly recommend backing up your computer before running the OS X El Capitan installer. Here is a guide on how to downgrade from OS X 10.11 to OS X Yosemite. | |||||||||||