Why is my screen completely black?
Solution 1:
If I understand your question correctly, you'll probably want to reset the game. Warning: If instructions aren't followed correctly, all worlds will be deleted. I am not responsible if this happens.
- For Windows 7, press start (on Windows XP click "run..." afterwards and then type in
%appdata%in the run dialog, not the search), type in%appdata%in the search bar, and press enter. A folder should pop up. - Navigate your way to .minecraft/saves/. Copy everything in that folder to another location. Your desktop, for instance.
- Now, go back up the folders and delete the .minecraft folder. Empty your recycle bin.
- Open up the Minecraft Launcher and log in. If you followed directions correctly, it should automatically update.
- Now, close Minecraft and copy the stuff you copied to your desktop back into .minecraft/saves/
- Open Minecraft. Enjoy!
If this doesn't work, then there could be something wrong with your video card or drivers.