Microsoft Diagnostics and Recovery Toolset, a core component of the Microsoft Desktop Optimization Pack for Software Assurance, helps IT teams make PCs safer to use, keeps employees productive, and enables desktops that are easier and less expensive to manage. Administrators can easily recover PCs that have become unusable, rapidly diagnose probable causes of issues, and quickly repair unbootable or locked-out systems, all faster than the average time it takes to reimage the machine. When necessary, you can also quickly restore critical lost files.