When No Mountable File System Mac error appears on computer screen than you can’t accesses the data present on Mac. The reason behind the error is that the OS X didn’t get the file system in the desired format and so it fails to mount the image of drive. In this situation the file system corruption might damage the OS X. It start flashing massage No Mountable File system Mac. It can lead data loss scenarios and you will need solution to recover important files on Mac drive. You can take help of few inbuilt utilities like Disk utility and Time Machine backup. Disk utility can easily solve the problem in the case of some minor corruption on drive. You can also use Time machine backup to restore data after re-installing the OS X. For this you should have a backup. No mountable file system Mac error will surely cause data loss and to solve the problem is also possible with the help of a third party data recovery tool. Mac Data Recovery software has a very special algorithm which can read all type of lost data from drive which is corrupted due to No mountable file system Mac error. It is a very prominent and effective Mac data recovery tool which works very accurately to provide you total recovery of lost data.