Incompatibility with third-party software is by far the most common cause of difficulties with system updates.ģ. Before installing any Apple update, you must check that all system modifications that you use are compatible. Remove them when they are no longer needed. Don't install such modifications unless they're absolutely necessary. Keeping up to date is especially important for complex software that modifies the operating system, such as device drivers. Otherwise you have to check yourself on a regular basis.
Some third-party applications from other sources have a similar feature, if you don’t mind letting them phone home. In the App Store or Software Update preference pane (depending on the OS version), you can configure automatic notifications of updates to OS X and other Mac App Store products. If you get an indication that a backup has failed, don't ignore it.Ģ.
Don’t rely completely on any single backup method, such as Time Machine. Don’t back up your backups all should be made directly from the original data. Make two or more backups of all your files, keeping at least one off site at all times in case of disaster.