Its the Blue Screen of Death. It'll usually says something like "Begin Physical Memory Dump" right? There's many reasons for this like because you formatted your computer you may have caused the errors. If the blue screen appears outside of playing a game it usually means you need a new computer. Please give specs on your computer if you know them it would allow for more help.
Also make sure your have the newest DirectX downloaded. Also reinstalling the game client may help, anything you think you can do that wont cause more harm to your computer would help, remove programs you don't need.
