Many times Mac users are in a situation where they get Partition failed input output error. Partitioning a Mac hard drive is necessity for managing the data in a proper way. A user can store different type of data in different partition, the partition can be done by using disk utility. The disk utility is efficient enough to perform this task but sometimes the intended work is hindered by partition failed input output error. This error is caused when the hard drive volume has been damaged, header file has been corrupted which lead to logical corruption, due to disk utility failure, hard drive is infected by virus, due to another partition error that occurred previously. To fix partition failed input output error you may have to completely format the drive. In the process you will lose all your stored data but you do not have to worry if you have the backup of it. But if the backup is not there then you have to use Mac data recovery software that ensures complete recovery of all the data after partition failed input output error is fixed. Just download the software and get back your lost data.