How can I install apps to 'Phone capacity' I have a General Mobile Discovery 16GB, Android 4.2.1 -- Kernel 3.4.5

When I go to my storage settings, I have this screen.



Click image for larger version

Now my apps are installed on system capacity part. Is there a way to make them installed on Phone Capacity?
Go to Settings->Apps, select a app and choose "Move to SDCARD", it should move it to Phone capacity, but if that doesn't work, root is the only solution I guess