What is so wrong with the fact that minecraft doesn't work after that?

I normally installed Forge and Optifine on Minecraft about 2 hours ago with the help of Java, of course I wanted mods too, but Minecraft just didn't allow it! He either didn't show it or said that it was faulty and when I thought it was the mod when I went into a world not there!

Am over then gone% appdata% to the minecraft folder and then in mods.

So after I locked Minecraft Launcher, minecraft didn't open again! I can click like anything else, a short circular circle that loads and that's it.

I bought the Minecraft from Mojang

Well, ka what you've done, but apparently you crashed the launcher… You can empty the whole .minecraft folder and then restart Minecraft… ALL settings and old worlds go over the Wupper… So worlds before, if necessary copy out…

Then start the version that you want to play first. Then install Forge accordingly. In the profile that Forge creates, then select another directory (e.g. "C: \ Minecraft \ Forge_1.16.4" e.g. For version 1.16.4 ect…)

Then start the Forge version once, so that the directories in the new profile folder are all created… Now you have the mods folder in the folder, where you copy Optifine and all other mods to exactly match this version… If core mods ect are missing, then that will displayed as an error message. You then have to load these mods, as some mods are based on core mods and therefore need them…

I find myself just installing Forge is pretty cluttered. I would recommend the Technic Launcher to you. This allows you to create several modpacks or to download ready-made ones. You can then display your mod folder and simply drag your mods into the folder as usual.