ISO bootable x64 and x86 for Windows 10 build 1809 (updated October 2018) and earlier. The Microsoft Diagnostic and Recovery Toolkit (DaRT) 10 allows you to diagnose and repair computers that are not starting or are having trouble starting as expected. With DaRT 10, you can restore unusable end-user computers, diagnose possible causes of problems, and quickly repair computers that cannot be started or locked. If necessary, you can quickly recover lost files quickly and detect and remove malware even when your computer is offline