Boot ISO k64 and k86 for Windows 10 build 1809 (October 2018 update) and earlier. The Microsoft Recovery and Recovery Tool (DaRT) 10 enables you to discover and repair computers that may not start or have problems starting as expected. With DaRT 10, you can access end-user computers that are not being used, detect potential causes of problems, and quickly repair computers that cannot be started or shut down. When needed, you can quickly recover lost files and detect and remove malicious software, even when your computer is offline