Failed to Install 4 Critical Security Updates

System: Windows 2000
I receive a 'failed to install' message each time I attempt to
download/install the following four critical security updates: KB894320,
KB893066, KB893086, KB890859. I've tried everything that I could think of to
get these files to install, including deleting the WUTemp folder. Nothing has
worked. They seem to download okay. Incidentally, these are the ONLY files I
am having trouble installing.

Has anyone else experienced this problem with these particular files? Were
you able to solve the problem? If yes, how? I'm becoming desperate. Thanks.

http://support.microsoft.com/default...b;en-us;822798
You Cannot Install Some Updates or Programs “Digital Signature not found�
When you use the Windows Update Web site to install updates, the installation fails
and the Windows Update.log file contains error 80070643.

You can download them from the Catalog and save to be installed later.
http://v4.windowsupdate.microsoft.co...en/default.asp
How to Download Windows Updates and Drivers from the Windows Update Catalog
http://support.microsoft.com/?kbid=323166

Click Add button for each update you want to download. Once you have what you want,
Click the “Go To Download Basket� link. Type in or browse to the location where you
want the updates saved to and then Click the “Download Now� button.


"nc" <> wrote in message
news:3CF4C8CA-2FA9-479D-B03F-...
> System: Windows 2000
> I receive a 'failed to install' message each time I attempt to
> download/install the following four critical security updates: KB894320,
> KB893066, KB893086, KB890859. I've tried everything that I could think of to
> get these files to install, including deleting the WUTemp folder. Nothing has
> worked. They seem to download okay. Incidentally, these are the ONLY files I
> am having trouble installing.
>
> Has anyone else experienced this problem with these particular files? Were
> you able to solve the problem? If yes, how? I'm becoming desperate. Thanks.
>