My name is Jeff and I work with the Windows Outreach Team. I did some
searching for you and came across this help page. It sounds like you have an
issue with Windows or Microsoft Update installation. Check out the link
below. It will walk you through a few possible solutions. http://support.microsoft.com/kb/906602
Windows Outreach Team
> I am trying to install Windows Family Safety and I keep getting an error
> message that a fatal error occured with an error code of 0x80070643. Can
> anyone tell me how to install this?