http://www.italki.com/question/301202
I wrote about general language learning and Korean in particular.

Excerpt:
"Start with 한글 (the alphabet) and then just work on a little bit of everything.
You want to create balance between the four skills (reading, listening, writing, speaking).
You should continuously be working on learning new vocabulary (on a daily basis) and new grammar (on a weekly basis)."

I think you can download some softwares to learn.

If you want to learn it in a more interesting way,you can watch K-drama or listen to K-pop.

I would recommend using websites like talktomeinkorean.com and howtostudykorean.com

Both of these sites really helped me learn the basics of Korean, while also offering a lot of free, advanced lessons too.