Launch Minecraft again to check if it’s working properly.In the Processes tab, right-click on the Minecraft and choose End task.Press the Ctrl + Shift + Esc key together on your keyboard to open the Task Manager.You need to end both tasks and reboot the game. Some users have mentioned that when this issue appears, there’ll be two MinecraftLauncher.exe. Reboot Minecraft may fix the won’t launch issue. If the launcher closed but not start Minecraft after clicking the Play button, you can open the Task Manager to end the task manually. You may not have to try them all just work your way down the list until you find the one that works for you. If you don’t know whether your computer is powerful enough to run the game which is a possible reason for this issue, you can check Minecraft system requirements first. It is really upset when you want to play Minecraft but it won’t launch! Don’t worry, try the solutions below and you can enjoy your game.