RE: Error code 646
> Know the feeling. Spent days on this tried 5x, failed 5x. Somehow I decided
> to turn off firewalls. That didn't work, BUT if you turn off user account
> controls you can install all these updates. I use the same OS and go to
> control panel, click user accounts, turn off controls, go back and install
> downloaded updates, the go turn user account controls back on. Glad I could
> be of assistance.
> "olusesanyeni" wrote:
> > Out of several updates received on 6/10/2010, one update in a group of four
> > encountered an unknown problem during installation. This update is the
> > Security for Microsoft Office System (KB 982331). I use Vista Home Premium
> > and shall be grateful if anyone can render assistance to resolve this
> > problem. Thank you.