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.