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.
Once downloaded, you can then burn them to CD if you want to.
Search for a download
http://www.microsoft.com/downloads/s...displaylang=en
"Dale" <> wrote in message
news:14e801c499b9$b8b47450$...
> Downloading .... Microsoft.net Framework 1.1 ServicePack 1
>
> after search for critcal updates .. the program asks me to
> download and install
>
> attempted 5 times ... each time a message is received.
> "downloaded ... but not installed successfully"
>
> History shows each attempt as "Failed"
>
> What to do????