Is other updates are getting installed properly or this error pops up for all the updates?
I would suggest you to access the link below and run fix it to reset Windows Update components; it might help us fix the Windows Update issue.
Access the link below to know more about how to troubleshoot error message when you try to install Microsoft Update on a Windows Vista-based computer: "Could not install Microsoft Update on the computer".
Please respond back with the status of the issue and let us know if you have any issues.
Azam – Microsoft Support.
2 people were helped by this reply
Did this solve your problem?
Sorry this didn't help.
Great! Thanks for marking this as the answer.
How satisfied are you with this reply?
Thanks for your feedback, it helps us improve the site.
How satisfied are you with this response?
Thanks for your feedback.