I can't get Terraria to work on steam because I need framework 4.0. Before getting that I turned updates on for the first time and got some updates. Most failed. This is the error code: 8000FFFF. I tried multiple times but they don't download. Any clue why? Also when I tried to download fw 4.0 off MS.com, I had a "catastrophic error". Know why? I would love help and let me know if you need more info!