Among many offerings of Apple, iMac is a range of Macintosh desktop computers. Apple has introduced iMac in late 90s and since then, this all-in-one Mac system has evolved through five distinct forms. With many advanced features and functionalities, iMac has been the center of fascination of many Mac users. Sometimes, users encounter sudden freezing of iMac. This may occur in the middle of watching a movie, surfing Internet or transferring files from any external media.

Under such situations, the user does not find any option except hard boot to get to normalcy. But, following such a process of freezing and hard boot, sometimes, iMac either stops responding with the grey wheel or just halts at the booting screen, leaving all your data inaccessible. Such a situation can be handled with a Mac recovery utility to bring the inaccessible data back...

Mac is one of the advanced operating systems of the recent time and is undoubtedly loaded with the most recent technology and features. However, many times, newer versions of some software applications have not been properly tested for compatibility with the previous versions of operating systems. Hence, running of incompatible applications may sometimes cause serious data loss situations and you may need any Mac recovery software to recover your valuable Mac data back.

This kind of situation usually happens with some of the new versions of Photoshop CS2 while installing them on older Mac OS X versions. You may receive an error message, following which the data in the drive becomes completely inaccessible. The error message, which you may have encountered can be as below:

"-Illegal Name error when you run Disk Utility"

Cause: The cause lies with some versions of the Macintosh operating systems, which report as illegal file names, when they read some of the particular font data in Vietnamese End User License Agreements...

Data loss is a horrible reality that any computer user may face at any point of time. It may happen to even the most secure and the safest computer, nevertheless of hardware and software configuration. To prevent such situations and create regular backup of your valuable data, Mac OS X 10.5 Leopard and 10.6 Snow Leopard operating systems offer Time Machine utility. This utility backs up your precious data automatically at scheduled time and supports both internal and external storage media. Backup is the most significant way to ensure absolute Mac data recovery in all data loss cases.

Although, Time Machine application supports external hard drives to store backup data, but the drive must be formatted using HFS+ file system in Journaling mode. In case external hard drive is using the Master Boot Record (MBR) partition type, then you may encounter serious issues...

Hard drive partitioning is a method to divide your computer hard disk into various partitions, which work like separate drives. Partitioning helps you easily manage your valuable data and keep your data separated from the operating system. It helps you prevent data loss in case of operating system corruption and avoid Mac data recovery needs. Mac OS X operating system supports various disk partitioning schemes.

Different partitioning schemes of Mac OS X operating system can cause problems sometimes. Intel-based Macintosh computers enable you to install the operating system on hard drives that are partitioned using GUID scheme. On the other hand, PowerPC based machines supports only Apple Partitioning Scheme.

When you try to install Mac OS X operating system on a hard drive or hard drive volume that does not have native partitions as per the type of system processor, you may get the following error message:

"You cannot install Mac OS X on this volume. Mac OS X cannot start up from this volume."...

Though the Mac systems are very much efficient in accomplishing the everyday works and are built with all the advanced technology, still it does not mean that one can not face any instance of data loss with Mac. Mac users do face data loss in spite of taking strict measures and moreover, sometimes, data loss can be so accidental that it may not be prevented. In all such tragic and unfortunate situations, Mac data recovery is a technology to recover all your valuable data back.

Sometimes, with any unexpected power failure, if the Mac system suddenly shuts down, it shows an error message, the next time you try to boot the system. With the error message popping up every time you try to start-up, the system may fail to boot further.

The error message may be as follows:

"-127 error disk could not used/found"...

Apart from the normal boot mode, in the Mac systems, there is another special boot mode called 'TDM' or 'Target Disk Mode'. The Mac systems, which have been started in the TDM boot mode, behaves as FireWire drives. The Macintosh system started in TDM mode, does not boot and can get attached to any FireWire port of any other system with the options for formatting, partitioning or transfer of files. However, if you try to mount the disk that has been started in TDM mode, it fails to boot and the data in the drive becomes completely inaccessible. In such a situation of data loss or inaccessibility, you have to opt for any Mac data recovery software to recover and restore your valuable data from the troubled Mac drive.

In the above instance of data inaccessibility, when the Mac drive fails to mount, you may encounter an error message, which can be read as below:

"You have inserted a disk containing no volumes that Mac OS X can read"...