Bootable ISO x64 and x86 for Windows 10 build 1809 (October 2018 Update) and above. Microsoft Diagnostics and Recovery Toolset (DaRT) 10 helps you diagnose and repair computers that won't start or start as expected. With DaRT 10, you can recover end-user computers that have become unusable, diagnose the likely causes of problems, and quickly repair unbootable or locked computers. If necessary, you can quickly recover important lost files, detect and remove malware, even when your computer is offline