Can't start game

[KuroYoru]

cant seem to start MapleKey, whenever i try to run it, it just says that maplestory has stopped working. was playing normally yesterday :x
1) tried to run as admin, didnt work
2) tried to reinstall, didnt work also

[Anime]

Hello, if it worked yesterday there shouldn't need to be any reinstalling. Try changing your compatibility settings? If it worked once, it's bound to work again.

You can do this by right clicking your MapleKey.exe client, then press properties. After that click the compatibility tab once a new window pops up and mess around with the settings. There's no harm in changing any of them.

[KuroYoru]

tried everything, didnt work also :x

[SunRaine]

Try to close all your other task and reopen only some
(that what i do, and depending on what i re open i get the error or not :^)

[KuroYoru]

^tried that and closed everything i could
still cant work
sad ;-;

[SunRaine]

restart your comp then :^)

[Anime]

Maybe you have an antivirus that's preventing it :o

[KuroYoru]

was gonna say my comp has no antivirus :x
restarted my comp and doesnt work also
also put the program on exception for windows defender :x

[Rebourne]

Under properties of the MapleKey.exe at the very bottom of it see if there is a checkbox that says something along the lines of maybe "this is from another pc but allow to run" and check the checkbox

[KuroYoru]

^cant seem to find it at my properties tab
am using windows 7 btw