There is a new installer available for windows version of Minecraft which has a private version of JRE and does not require standard system-wide version of Java installed.
Minecraft for Windows
Download and run Minecraft.msi. This will install Minecraft and create a shortcut in your start menu. If you'd like a version without an installer, you may use Minecraft.exe instead. You do not need Java installed to run either of these.
https://minecraft.net/download
Minecraft for Windows Download and run Minecraft.msi. This will install Minecraft and create a shortcut in your start menu. If you'd like a version without an installer, you may use Minecraft.exe instead. You do not need Java installed to run either of these.