Is you external hard drive not showing up on Mac? Unable to access or process your precious data? Well, don't worry it is a common issue and can be resolved easily. Usually this kind of issue is encountered on Mac OS X due to problem in connection wire. Hence check the wire first for any kind of damage and always use the authentic wire in order to connect your external hard drive with your system. In case if still your external hard drive not showing up on Mac then it means there is a severe corruption in your external hard drive. However, in such situation you can restore backup in order to get all lost files back. In case if there is no backup available then the only way to resolve this issue is formatting your entire external hard drive completely. Once, external hard drive not showing up on Mac issue is troubleshooted permanently then you can easily get back all your lost files with using third party Mac Data Recovery Software. It is very advanced, powerful and easy to operate utility. It is effective enough to restore files from even formatted drive as well. Therefore, it would be sensible to retrieve all lost files with Mac Data Recovery Software when your external hard drive is not showing up on Mac.