Since minecraft is not installed on the computer, you can simply just delete the Minecraft.exe file and the .minecraft folder. The Minecraft.exe file is most likely in your list of downloads unless you moved it. The .minecraft folder can be found by typing in "Run" in the search bar on the start menu and then writing "%appdata". Then you'll get some folders, one named .minecraft. But you might want to do a backup of your saved games before deleting Minecraft from your computer. The save files can be found in the .minecraft folder. Just copy them somewhere and paste them there again once you have reinstalled Minecraft.
Try to reinstall Minecraft.
You simply delete the bin file, reopen Minecraft, and it will automatically reinstall.
You may not have installed it correctly. Just reinstall.
One of the Minecraft files that are required to start it may be corrupted. Uninstall and reinstall Minecraft and see if that fixes it.
Delete Minecraft from your computer and download and install it again. Once you have bought the game, you can download it to as many computers as you want.
Open Minecraft and click on the "Option" button and select "Force Update" and it will reinstall the files and start over. It won't touch the saves or world files only the core Minecraft files.
If you have a previous version of Minecraft, there should be a notification when you start the game and sign in telling you that you can update the game. If this doesn't come up, uninstall and reinstall the game and it should be updated.
Can ordering a pizza delete your house?even when you install the mod your save data is still going to be there unless you delete it yourself or reinstall minecraft.
The servers might be too busy, or your game could be glitched. I would first try to restart, or reinstall the app depending on what version of Minecraft you are playing, and if that doesn't work, contact support for the game.
You will need to reinstall the mod. Make sure you use the correct version of the mod.This is because 'Force Update' redownloads the original Minecraft files, without any mods.
Have you port-forwarded? That's needed for Minecraft servers to work (and for most other gaming servers).
Reinstall it? And if you're using mods then navigate to .minecraft/bin and open minecraft.jar with winrar or 7zip or whichever you choose, and delete META-INF. this should fix black screen