If you are installing Mac OS X in a custom built hardware or any computer other that Macintosh then you may run in to some error such as boot0 error. So how to fix Mac OS X boot0 error is a big question, running any version of Mac operating system on other machine is called hackintosh and does involve some technical skill. The error can show up just after installation or after some time. There may be several files saved in the partition when the operating system is installed so to fix Mac OS X boot0 error is necessary. You can use the disk utility from the terminal to fix any issue with the startup drive. You can also try to reinstall the operating system or there can be need of formatting the drive. If in the process to fix Mac OS X boot0 error you have lost your files then you can get them back with any backup resource. If the backup is not there then use the Mac data recovery software to restore your files. It is quite easy to use and effective too so you can get all your files back. So download the software now.