Topic is self explanatory, I would think. Can someone give me instructions on how to put the game in windowed mode?

I also thank you for using as little technical jargon as possible, I'm not that savvy when it comes to different file types and such.

Step 1: Click on the button in the right corner (look at picture)
Step 2: Make sure the square is selected
Step 3: Click on the button (look at picture)
Step 4: Close the options window
Step 5: Start DBO

Depends what version he's using....Korean or Taiwan ?

Sorry, Taiwanese (my apologies for not being specific enough.)

However, the picture shown was exactly what I needed and I have it windowed now. Thank you very much.