When you try to install a Windows Vista Service Pack, You may encounter the following error message:
Install Windows Service Pack
Installation was not successful
When you view the %windir%\Logs\CBS\CBS.log, you will find the following entries:
<Date Time>, Info CSI 00000704 Calling generic command executable (sequence 54 (0x00000036)): "C:\Windows\bfsvc.exe"
CmdLine: ""C:\Windows\bfsvc.exe" C:\Windows\boot /nosystem32boot /nofonts"
<Date Time>, Error CSI 00000709 (F) Done with generic command 54 (0x00000036); CreateProcess returned 0, CPAW returned S_OK
Process exit code 15299 (0x00003bc3) resulted in success? FALSE
Process output: [l:60 "BFSVC: Failed to get system partition! Last Error = 0x3bc3
To work around this issue, turn off the computer and physically unplug all drives that are not required for starting Windows. Power up the computer and restart the service pack installation.
If the workaround is not successful, the alternative is to perform a clean-install.
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