If your Mac system is not booting up then must be looking to resolve startup issues in OS X 10.8. The problem is coming up because the the Mac OS X files are not loading in the memory of the system. This generally happens when the files are corrupted or misplaced, the disk where the files are saved means the start up disk is corrupted. Sometime when there is error or interruption in the updating of the OS X then you may face problem like this. You can Resolve startup issues in OS X 10.8 by repairing the drive using disk utility and if it is not repaired then you will have to format the drive. Then you can reinstall the operating system. Then after you will notice that all you files have been lost from the drive you can get them back using the time machine backup and if it is not working then you can use the Mac data recovery software which will recover all you files regardless of their format. So you can recover audio, video, documents and other types of files with ease. So this way you can Resolve startup issues in OS X 10.8 and recover your files too.