A software update in Mac OS X system allows a Mac user to update a pre-installed software. The update is freely available on the Internet and can be installed in four simple steps. The results of the software can be viewed after you restart your Mac machine. While a software update proves beneficial in most cases, there are certain situations where the machine might not boot after updation.

Such scenarios occur when the update is affected by a bug, is incompatible with your system, or updation is not performed systematically. Since, your Mac machine becomes unbootable due to above reasons, the data saved in the hard drive also becomes inaccessible. To access data in such scenarios, you will need to restore the data from an updated backup. However, in case you have not maintained any backup, or backup is incompatible in storing required information, then you will need to opt for an effective Data Recovery Mac tool.

To elaborate the above situation, consider a practical case wherein you perform a software update on your Mac OS X 10.4.11 machine. However, when the updation is in progress, you encounter the below error message:

“Software Update has encountered an unexpected issue, you must restart.”

When you restart your system after the above error message, it does not boot and hangs at a blue screen. Furthermore, the data saved in your Mac hard drive becomes inaccessible.

Cause:

The three main reasons for the occurrence of the above error message is a bug during the updation process.

Resolution:

To overcome the blue screen and to boot your system, follow the below mentioned steps:

1. Reinstall Mac OS X 10.4.11 on your system.
2. Restore the data from a valid and complete backup.

However, if you have not created any backup and you still want to access the formatted data, then you will need to opt for a commercial Mac Disk Recovery application. A Mac File Recovery utility is an easy-to- understand and operate application that allows even a novice user to perform data recovery. The tool allows the user to preview recoverable data and restore it at your specified location.

Stellar Phoenix Macintosh Data Recovery is a powerful, yet safe Mac File Recovery utility that recovers lost, deleted, and formatted data in a few mouse clicks. Compatible with HFS, HFS+, HFSX, HFS Wrapper, and FAT file systems, the tool supports Mac OS X 10.3.9, 10.4 Tiger, 10.5 Leopard, and 10.6 Snow Leopard.