DaemonUmbra

Do you have Java installed? If you have Java installed and it still shows in Windows explorer as an archive, try this: https://johann.loefflmann.net/en/software/jarfix/index.html

User was banned for using a cracked launcher. Buy the game.

What launcher are you using? Please provide a screenshot.

User was banned for using a cracked launcher. Buy the game.

1.7.10 is no longer supported on this forum due to its age. Please update to a modern version of Minecraft to receive support.

Forge installs itself as a version of Minecraft, make a new Profile/Installation and select Forge as the version (1.12.2 versions of Forge get booted to the bottom of the list for whatever reason)

Delete anything that's not a mod out of your mods folder first of all. Then run the Forge installer with the default install directory

Please provide your installer log, it will have the same name as the installer but with .log on the end: Installer: forge-{version}-installer.jar Log: forge-{version}-installer.jar.log Note: If you have Windows Explorer set to hide file extensions(as is the default setting), they will look like this: Installer: forge-{version}-installer Log: forge-{version}-installer.jar

Are you sure you're looking at the version list and not your Profile/Installation list?

What launcher are you using? Please provide a screenshot.

What is the actual error when you try to run the game?

What do you mean it’s telling you to install Java?

Sounds like you have mods installed on the client but not the server

The filenames of some of your mods suggests you are not getting them from official sources, please read my signature for more info on why this is a bad thing.

That fix is built into the installer now,I'm fairly certain your issue is an outdated Java. Update to latest Java 8: https://adoptopenjdk.net

Yes

They should be in .minecraft/config

The filenames of some of your mods suggests you are not getting them from official sources, please read my signature for more info on why this is a bad thing.

Again, why are you trying to install Forge to your mods folder?

Try this: https://johann.loefflmann.net/en/software/jarfix/index.html

Try deleting Forge's config files

Do NOT redistribute Mojang's intellectual property...

What launcher are you using? Please provide a screenshot.

It means try again or manually provide the vanilla server...

Read the Logs section of my signature, Twitch sub section, you'll find instructions on how to run the Twitch modpack without Twitch.