Nektony today introduces how Disk Expert can help those who are upgrading to Mac OS X 10.8, Mountain Lion. Disk Expert is an efficient disk space analysis and organization tool that helps users organize hard drive content and free up disk space. It proved to be an extremely useful tool for Mac OS X Mountain Lion installation. Disk Expert is a fast, intuitive and efficient disk space visual analysis tool. The utility scans the hard drive and generates a chart representing the current file system on a Mac.