If you are getting Mac OS error codes then you must be wondering what do they actually mean and what are the causes of these errors. There are various types of error codes that can hinder the proper working of the Mac system and they are divided them in different categories. The type one error is the Bus error which is generally related with memory issue and can be caused due to insufficient memory. Another type of Mac OS error codes is "error- 36" that occurs when the operating system is unable to read or write data on the hard drive. You can try to use the disk utility to fix this. Error-43 happens when the the system file of application is dislocated or went missing then the application may suddenly crash and show error message. These Mac OS error codes do show up suddenly and many times leads to data loss. Mac data recovery software is the tool that can recover all the files that were affected by the Mac OS error codes. It will scan the Mac system and then show the scan results in which you can choose to restore the files.