Try here first:
http://v4.windowsupdate.microsoft.com/troubleshoot/
If not, then please repost in the update group. Microsoft personnel
are there to help solve update problems.
(They may be swamped, so please be patient)
Server: msnews.microsoft.com
Newsgroup: microsoft.public.windowsupdate
or try this URL
news://msnews.microsoft.com/microsoft.public.windowsupdate
....Alan
--
Alan Edwards, MS MVP Windows -Internet Explorer
http://dts-l.com/index.htm
On Fri, 16 Oct 2009 12:53:03 -0700, in
microsoft.public.windowsxp.newusers, ibethemom1
<ibethemom1 DeleteThis @discussions.microsoft.com> wrote:
>I keep getting this error message "Windows encountered an unknown error"
>error 646 when i try downloading 3 updates. can anyone help me out