If you already activated the game on Steam. You only need to download it.
For this open Steam, go to the Games Library and select Darksiders and click on Install Game.
The game will start to download and it will install once it finishes, after this is done you can just start the game from the same place.
Let me know if it helped please.
i have fix it i have unstal and have copy steam files to another driver and after that i have download the full game
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