Microsoft Diagnostics and Recovery Toolset. The Microsoft Diagnostics and Recovery Toolset (DaRT), is 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. Many IT departments take a proactive approach to backing up network data, but tend to be reactive in planning for desktop system failures.
The most common solution is to reimage the machine, but that can result in loss of user settings, personalization, and potentially data. The Microsoft Diagnostics and Recovery Toolset provides a foundation for shifting desktop repair procedures from reactive to proactive. Paul Thurrott's SuperSite for Windows Home Page.