Im having the same problem. It started when my pc crashed and fixed hard drive at startup. Then I ran minecraft with all my mods and nothing happened. I uninstalled and installed again. Minecraft worked just fine. Then I installed Forge and minecraft just didnt startup anymore. Ive tried A bunch of different Forge versions and Different Minecraft launchers but with Forge they wont work. I tried with the magic launcher with TooManyItems mod(NON FORGE) And it worked just fine. Today I uninstalled All JAVAs and all minecraft versions and deleted the .minecraft folder. I Installed JAVA Again and minecraft. But forge still doesnt work. I select the Forge profile and select the forge 1.7.2 version and when I click play Launcher dissapears. Ive checked the task manager . Minecraft goes to background applications. It takes 0% of CPU but 240mb of RAM. And after 30 seconds It dissapears from the background applications. No error logs or crash logs. Please help me.
