Unable to Proceed with Permissions or Incorrect Cause Data Loss in Mac

In Mac OS X based computer, when you use Time Machine to backup the Preferences directory, you may fail to do it. At this point of time, you may come across with the below given error message:

"Error reading file '/Users/user_name/Library/Preferences/com.apple.preference_name.plist'.

There was an error reading this file from disk." Here the only option you have to select is- OK, which results into an unproductive backup. This problem takes place due to some files in the Preferences folder of particular users which have incorrect permissions set. These incorrect permissions prevent Time Machine from reading the Preferences files and hence create this issue.

To work around this issue, you may exclude some selective files from backup. These files can be:

com.apple.loginwindow.plist

com.apple.NetInfoManager.plist

You can do it by following the below given steps:

1.Drag Preferences folder into the backup window from your Home directory

2.Open Info drawer to deselect particular files

If you do not like to exclude any file, you can modify the permissions by entering commands in Terminal application. It will let you backup each and every file. Though, it could fix your issue, but sometimes modifying the permissions might cause data loss.

If you are unfamiliar with the Terminal and UNIX-like interface, you may mistakenly enter incorrect commands and may fall in grave situations of data loss. Your operating system and data structure may get damaged. In such circumstances, your entire Mac hard drive may become inaccessible and your precious data may get lost.

Although, it is very hard to accept the data loss situations, but you should not panic as data recovery Mac is here for your rescue. Data recovery Mac is potential using third party applications known as Mac data recovery software.