 
 <prompt> Wetin D dey stand for for "BSoD"? Based on di last question, write one context wey get di answer. E fit be 1 - 20 sentences. Context: <response>: Three important releases of Windows 8 don leak go general public. Milestone 1, Build 7850, leak on April 12, 2011. Na di first build wey dem write di text of window for center instead of left. E fit be di first time wey Metro-style font show face, and di wallpaper get text wey talk say shhh... make we no leak our hard work. But if you check di detailed build number, e show say dem create di build on September 22, 2010. Di leaked copy na Enterprise edition. Di OS still dey show as "Windows 7". Milestone 2, Build 7955, leak on April 25, 2011. Di traditional Blue Screen of Death (BSoD) don turn to new Black screen, but dem later cancel am. Dis build bring new ribbon for Windows Explorer. Build 7959, with small changes but na di first 64-bit version, leak on May 1, 2011. Di "Windows 7" logo briefly change to text wey show "Microsoft Confidential". On June 17, 2011, build 7989 64-bit edition leak. E bring new boot screen wey get di same fish as default Windows 7 Beta wallpaper, wey dem later cancel, and di circling dots wey dey show for final version (although di final version get smaller circling dots throbber). E still get text wey talk Welcome below dem, but dem cancel am too. 