Nope it still says
The minecraft installation was corrupted.
The minecraft installation has been cleaned.
Try to login again, if that fails, close and
restart the application
I want to install Optifine with Tekkit Lite but when I put Optifine in the Modpack.jar and Minecraft.jar it just says that Tekkit Lite is corrupted and goes and downloads a new fresh jar. HELP MY GAME IS SO LAGGY!