Vista Desktop does not load occasionally on startup. Only a black screen appears with the mouse pointer.

Subject: Vista Desktop does not load occasionally on startup. Only a black screen appears with the mouse pointer.

I got this issue today, it took me nearly 3 hour to resolve this. Rajiv helped me resolve it. It was his R n D that did it.

Issue:  Vista Desktop does not load occasionally on startup; we have to start ‘explorer.exe’ from task manager be pressing “Ctrl + Alt + Del”.

Resolution:

You have to set the default value for the windows shell setting:

In the Windows Registry (open 'regedit')
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\winlogon\

Set 'Shell' variable = C:\Windows\Explorer.exe