unable to install windows updates with error code 80240016,and 646

i have tried to download the updates manually and automatically. there are 14 of them but to no avail. I have a windows vista operating system and i have tried to find the error codes on line and fix myself but as yet no joy. can you help. all of the updates i think refer to microsoft office and student which is installed on my computor.


Hi Tina500,

Thank you for using Microsoft Windows Vista Forums.

You are probably getting this error message because

Windows Installer is out of date.


Here is a link to a KB article that addresses this issue


Please reply and let us know if your issue is resolved or if you need further assistance

David O
Microsoft Answers Support Engineer
Visit our and let us know what you think.
David O

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Question Info

Last updated March 25, 2018 Views 2,001 Applies to: