Windows 7 Ultimate SP1 installation fails with error code c0000034

I removed:

<Checkpoint/>

        <MoveFile source="\SystemRoot\WinSxS\Temp\PendingRenames\e56db1db48d4cb0199440000b01de419._0000000000000000.cdf-ms" destination="\SystemRoot\WinSxS\FileMaps\_0000000000000000.cdf-ms"/>

and rebooted, but it seems to hang at the "starting windows" screen as many other members have reported supra.

Any assistance would be greatly appreciated,

Thanks,

Pete