Cant find java directory(HELP PLEASE)

[Vexus]

Ok so when i try to run the launcher the download pops up but it doesn't download because another pop up. pops up that says Cant find java directory so it wont run the launcher because when i exit out of that pop up it closes the down loader. so how do i fix this?

[Viderizer]

You don't have correct Java installed for your computer. Make sure you hava 32bit Java on a 32bit machine and 64bit Java on a 64bit machine

If still doest work, launch it manually from [uSERNAME]/%appdata%/.techniclauncher/technic-launcher.jar