Outdated Java Version: Minecraft makes use of the Java platform to run properly and get its mechanics up and running. If the Java platform is outdated or not installed properly on your computer, you might experience not responding issues.
Outdated Windows: Windows is the main operating system in which Minecraft runs. If the OS is outdated or there are some issues, your Minecraft probably won’t be able to run and become unresponsive.
Incomplete/corrupt Minecraft Installation: There are also cases where the Minecraft installation is corrupt or incomplete. This might occur if the version was not updated properly or you moved the game manually to another directory.
Outdated Minecraft: Minecraft releases updates now and then to introduce new features and resolve errors and bugs. If you have an outdated version, Minecraft might refuse to launch and become unresponsive.
Mods: If you are running Minecraft with mods, it is recommended that you disable them and try launching the game again. Mods change the behavior of the game by improving the texture.
Video drivers: Video drivers are another known cause because of which the issue occurs. If the video drivers are outdated or incomplete, the game will not be able to launch and will go into an unresponsive state.
Administrator privileges: In some rare cases, administrator privileges are required to run the game. If the game does not have elevated access, issues will arise like the one under discussion.