I've tried: Restarting; Reinstalling; Adding maplestory / installer as exception in windows defender + firewall; Updating video card; Re-downloading and then reinstalling everything; Removing windows defender and firewall completely; No luck.
Here it is Its a firewall exception thing I also included it in the firewall rules multiple time, for some reason I cant paste an image now.
That's not the right settings https://royals.ms/forum/threads/setting-exception-for-mapleroyals.243951/
Still: I added everything into a single screen shot, but even tho I have the entire folder as exception on windows defender, the installer and the exe.
You may try downloading the zipped version https://drive.google.com/drive/folders/1K-wMWFrKWy-KIvPupacgR_hN9Ajlk3MF?usp=sharing But it's very likely your anti-virus will still delete the files