SQL Server 2008 Installation error for "Restart failed"

While trying to install SQL Server 2008 the installation may not proceed showing that Restart has failed. Even though you restart your computer it may show you the same message.

Check your system's pending file rename operations registry key. It should be cleared after you reboot your system. If not, something must be wrong.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\PendingFileRenameOperations