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Black Screen of Death Windows 7 Pro

Harold Rosenbaum
Last Modified: 2016-11-23
My client has several Dell Opti Desktops with Windows 7.  One began acting strange.  When you reboot Windows starts up with the logo but then we only get a black screen with a movable mouse cursor.  Does not matter which F8 choice I choose I get BSOD.  

Boot Install CD.  "Repair Your Computer".  System Restore fails.  
Command Prompt in "Repair your Computer"
SFC /scannow command says there is a repair pending ... restart
X:\source> is the command prompt.
C: is recovery
D: is OS
E: Windows CD

Regedit at X:\Source>.  Under HKEY_Local Machine Software, Microsoft, Windows NT, Current Version, Winlogon I see Shell= cmd.exe /k start cmd.exe and Userinit=X:\Windows\System32\userinit.exe.  I change Shell to Explorer.exe and Userinit to the C drive.  Reboot, run windows, SOS.  

Have run Symantec's SERT with latest definitions from USB drive and nothing shows up.  Client is using Symantec Endpoint Cloud.  

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