Java directory not found

When your computer says "Java directory not found" then you either don't have the latest Java update, or there is an error. If you can verify that you have the latest Java, by running "cmd" in the start menu, then type "java -version" and it should say what version you have. if you have the latest version then simply go to the start menu and type %appdata%, find the .Technicpack folder open it and run Technic launcher.