Tip: Quickly back up OS X system files and settings before tweaking
OS X ships with a default configuration and set of settings adjustment options that should work for most people's needs; however, there are times when you might wish to adjust a hidden setting or two, or troubleshoot problems by adjusting settings, databases, caches, and other files that are buried in various system folders. There are numerous online resources that can help, but even if you are comfortable exploring these files, it's good to have a way of reversing any changes you make.
Granted, OS X includes the Time Machine backup service that should back up all system files … Read more