Aion Riftshade

I have this issue with "fullscreen" option not available since the new patch...I thought it will be fixed with friday maintenance but it wasnt.Whats with that?

Appearantly NCSoft decided to remove exclusive Fullscreen. (According to Galeas on Discord) Windowed Fullscreen is usually just better though, just remember to set your Windows Scaling to 100% to prevent Aion from going haywire with its resolution (e.g. 125% forces 800x600 in Aion and thus looks like crap)

Thats sad news I played whole time at fullscreen so i could easy alt tab things.How can i set my windows scaling to 100% like u mentioned?My game suddenly became a lot darker.At fullscreen i could adjust brightness and now i cant.This is just stupid