I do not expect a fix for this bug as Windows 10 Build 10074 Insider Preview is not an officially supported operating system. This is to hopefully serve as a heads up to an issue when testing software on upcoming operating system. Minecraft launcher crashes and shows a Java is Not Responding error. No dump file is created. Screenshot shows the progress made when launching.
MCL-3619
Windows 10 Insider Preview Launcher Crash
Resolved
Invalid
0
Windows 10 is not officially released yet, so we're not taking bugs for it.