Error: 646 when tried to install on Vista security updates

Original title: CODE ERROR 646

I tried to download updates security for my pc several times. I use Window Vista home edition and Internet Explorer 8.je have closed all open windows and will continue to receive this error message 646.IRV can someone PLEASE advise me as to what I can do to get these updates to dwonload? Thank you

Hi terryp1964,

We recommend trying the following steps and check the result.
a. visit http://support.microsoft.com/kb/2258121
b. click Microsoft hotfix and run the tool successfully.
c. restart the computer.
d. try to install updates and check the result.

See the updates Windows Installer

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Tags: Windows

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