Forum:Citadel crash

The game crashes during the final mission on the main quest when leaving the citadel. Are there any fixes? I tried the patch from the bethesda site and I launched it, it starts the game up automatically. It seems to get stuck at 100% while it launched the game, at this point the game is not patched I have two choices either crash it ingame or exit and the patch will abort. After several attempts of installing the patch I am desperate about fixing this. This is my first time writing an article and I do not know how it works. Crashes:Citadel Final mission exit