Cannot find "knight online.exe"

[PointZero]

WTF?
So ive tried logging into KO, when i click the start in the auto upgrade window, It gives me an error thats says it canned find " Knight Online.exe please try typing it correctly"
I have no idea what this means, any help will be appreciated.
Thanks

[Riku]

disable ur anti-virus or any protection software when installing and before u enable it again make sure u add an exception for the exe

[PointZero]

I tried that, I just went through the menu in my anti-virus, found knight online, then clicked " trust " but the same problem is occurring

[BioDiesel]

just install again ko, that should work mate