[GCPH] Window Mode HOW?

I know many of us GrandChasers have the same problem as mine.
My problem is... I don't know how to window mode.
Everytime I start GC, >>GrandChase is now loading... is in full screen
and I really hated it. It always freeze like turning white screen.
I can window mode IF I already ingame.

I would like to start loading GC in window mode.
Anyone know HOW? :handsdown: PLEASE tell me I beg you.

Sir if nag-exit ka ng naka window mode, tapos start mo ulit, hindi ba siya window mode pagk-start niya? Kasi ganun sakin eh. Try mo na lang this: When you exit grand chase (alt + f4), don't choose exit game, log out first, then exit. ganun ako lagi e. Hinid naman full screen ang start niya.

Thank you po sir. Pede na po iclose to. ^^

or kapag nandun kana sa world map press alt+enter instead.