Hey, after applying a shader my minecraft crashed and i had to quit it, when trying to reconnect the launcher wont open, even after trying to restart my computer, waiting a whole night, uninstalling and installing it again, deleting everything minecraft related on my computer and trying to install it back again. None of this has worked, even tried to update my drivers. Launching the legacy launcher does not work either. Basically i have tried everything but to none effect, all that happens is i try to launch and it loads for a few seconds and nothing more. Furthermore, I've tried launching it as an administrator but that does not  work.