How to recover mac data after compatibility related issue

Mac is one of the most advanced OS in the present era it comes with features that are undoubtedly delight to all Techno savvy as well as non tech people to continue its edge among its competitors it all the apps and functions gets regular updates , It happens that some times we updates a software but it fails the compatibility test with mac now this sort of incompatible apps can some times leads us to the situation when critical data in our machine got lost and in that case we have to look for some mac data recovery software that can recover our data back

Now lets take example of up-gradation of Photo-shop CS2 while working on Older version of Mac Machine the software gets updated on the machine but it may face problem when we start working on the system we may find some erratic behavior in the machine we may encounter the message like :

                  "-Illegal Name error when you run Disk Utility"

The reason for this error is that some version of Mac operating systems reports some file names in illegal file names, and system stops responding after that
The information related to files type resides  inside folder of the Photoshop application and we can not delete these file, it can result in severe file system corruptions. Thus the data in the drive lie in stake.

Now question arises how to resolve these issues:
    for that purpose we have to follow the below given instructions
Just go to the below directories and delete 'legal' or 'legal.localized' folder:
-- Applications/Adobe Photoshop CS2/
-- [Username]/Documents/Adobe Help Center/

Run  the Mac 'Disk Utility' application to repair any instance of error in the file system.

After performing the above steps, if you are still unable to resolve the problem, restore the whole data from updated back up if case you don't have updated one you have to refer some mac data recovery application to get your data back

Mac hard drive is corrupted what to do now

Are you unable to start your Macintosh system, of late? Is this behavior is happening intermittently? Then, there is a very strong possibility that this is happening because of corruption in the Macintosh hard drive. The corruption can happen because of various reasons including power outages, critical file system files missing, abrupt system shutdown, etc. There are various methods that can be used to start the system. If none of these methods work, then you should use a third-party Mac data recovery software to perform data recovery in Mac systems.

Consider a situation in which you have a Macintosh-based system, which is not starting when you try to boot it. It is just displaying a blue screen without any error message.

Cause:

The root cause of this startup related problem is the hard drive corruption, which is disabling you from starting the system.

Resolution:

To tackle this situation, you should perform the following methods, preferably in the given order:

Booting from a different device: You should try to boot the Mac system using a removable boot device like USB drive, Mac OS X setup DVD, etc. To start Mac system using a setup DVD, the following steps are required:

Insert the DVD and hold the 'c' key after restarting the system.

You can, then, use the in-built First Aid utility to verify and repair hard drive.

Safe Mode: You can start the system in the Safe Mode by holding the 'Shift' key after restarting the system. It verifies the directory structure of the volume, and repairs it, if necessary. After logging in the system, you can use the First Aid utility to further repair the Mac hard drive.

Single User Mode (fsck): You can access the system by logging into command-line prompt using the following steps:

Restart the system and hold the 's' key.

Type the following command in the command-line prompt and press the Enter key to use the 'fsck' tool on the hard drive:

/sbin/fsck –fy

After a while, the file system is verified and repaired as the following message box is displayed.

** The volume xxxx appears to be OK.

If you receive the following message as well, then run the command again til you get the previous message.

***** FILE SYSTEM WAS MODIFIED *****

If the Mac system still remains inaccessible, then you should recover the data using a third-party Mac recovery software before reinstalling the operating system. Such Mac file recovery tools are non-destructive in nature that do not overwrite the existing file during the recovery.