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I'm going through and updating scripts which I have that will update a Windows 7 Professional installation up to the latest available version with hotfixes.

The issue I'm encountering is when I go back and check against some hotfixes, Windows will allow me to install them but the relevant KB article suggests that they have been superseded.

For example, I have updated IE11 using IE11-Windows6.1-x64-en-us.exe and applied hotfixes KB3185319 and KB3185319. Windows Update says that everything is now up to date and no additional hotfixes are available for this application. However, Windows will allow to to install IE11-Windows6.1-KB3008923-x64.msu whose KB article states:

The update that this article describes has been replaced by a newer update. We recommend that you install the most current cumulative security update for Internet Explorer. To install the most current update, go to the following Microsoft website.

According to Windows Update I already have the latest cumulative update but I am still allowed to install this update. Is it related to the several "non-security-related fixes" included in KB3008923?

Relying upon the associated KB articles is not always reliable either. For example, KB3058515 can be applied even while up to date with no associated footnote in its KB article suggesting that it was ever superseded.

This is an issue with a number of hotfixes and I can't find a clear answer on how to clarify whether they are still applicable. It is sometimes possible to use the Microsoft Update Catalog as a cross-reference for identifying which update has superseded another but there are cases such as this where attempting to locate the associated entry provides no results.

I have two questions here: if this update has been superseded, why does Windows allow me to install it? How can I identify exactly which hotfix supersedes another from a reliable and authoritative source?

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  • i'm no expert and I use chrome and don't really update things that much on my personal computer but IE I understand is an old browser. .If you are so concerned about updates why not use Microsoft Edge? You could even maybe uninstall IE if you think it's a security hazard! And if windows says everything is up to date then why care about anything re updates?!
    – barlop
    Jul 12, 2021 at 2:47
  • IE11 as it relates to the question is simply an example of the problem not a recommendation on how to browse the web.
    – Zhro
    Jul 12, 2021 at 3:27
  • Since Windows 7 lifecycle ended January, 2020, docs.microsoft.com/en-us/lifecycle/products/windows-7 , unless you have a volume licensed subscription, why bother to update at all? If you have a clone of the last version, there would be very few changes after 2020. Or just switch to a modern OS. Jul 12, 2021 at 3:38
  • Superseded means just that, no need to install the older one. "How can I identify exactly which hotfix supersedes another from a reliable and authoritative source?" That would be Microsoft.
    – Moab
    Jul 12, 2021 at 3:59
  • @Moab The KB article states that it has been superseded. Windows should not allow me to install a hotfix which is no longer applicable. I want to know which update supersedes this one to confirm that I have in fact patched the vulnerability.
    – Zhro
    Jul 12, 2021 at 4:57

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You did quite a good research already.

The information what you're looking for is not publicly available and - considering Windows 7 is not supported - unlikely Microsoft would help with your problem.

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