HT1338: OS X: Updating OS X and Mac App Store appsLearn about OS X: Updating OS X and Mac App Store apps
Currently Being ModeratedJun 2, 2013 12:03 PM (in response to Jht171)
You may want to take a look at some of the troubleshooting found in the article below.
Try a different software update source or disc if possible
Software Updates for Mac OS X and Apple applications for Mac OS X are often available in different ways:
- Software Update preferences
- Standalone installer from Apple Downloads.
Try getting the software from a different source, or download it again.
Hope that helps,