@MojangSupport the message
Unable to locate the Java runtime.
Error details: The operation completed successfully.
Filename on disk: javaw.exe
Path: C:\Program Files (x86)\Minecraft Launcher\runtime\jre-x64\bin\javaw.exe
Exists: Nonexistent
i cant give a full explanation
If you think you've found a bug, please visit https://bugs.mojang.com/secure/Dashboard.jspa … and report it so that the developers can see. ^SM