What if you are encountering League client black screen? In this post, some methods are given to you to resolve this issue. An antivirus program may be blocking some features of LOL.When pressing Alt + Tab to see another program while logging in, the black screen occurs.The reasons for LOL black screen are various, and there are two main factors: When starting the game, it allows logging in successfully but a black screen appears when the client starts. Although this game has great performance, some issues can occur on Windows 10 in some cases, for example, error code 004, an unknown Direct X error, etc.īesides, many gamers have reported a bug that happens to almost everyone. League of Legends, known as LOL, is one of the popular multiplayer online battle arena (MOBA) games and it is compatible with Windows & macOS. But fortunately, it can be easy to fix as long as you follow these solutions in this post from MiniTool. But many League of Legends players encounter a strange issue in this system - black screen. Windows 10 is a gaming-friendly operating system that brings many powerful features for gamers.