How to control order of installation of Servicing Stack Updates and Cumulative Updates

jif lemon 1 Reputation point
2021-12-01T17:13:12.587+00:00

I can see that the servicing stack updates include a check for the version entry in "Component Based Servicing" registry key.
I also see that the Cumulative updates check for a UBR version within the registry.
Both of these versions appear to be similar in format and they are obviously from different registry locations but I suspect that they may be the method that is used to control when Cumulative Updates detect that the required SSU has been applied.

Can you confirm this?
Or is there a different set of guardrails in place to prevent installation of CUs before the required SSU has been installed.

NOTE: I am not referring to the combined SSU/CU bundles that I've heard about.

Windows 10
Windows 10
A Microsoft operating system that runs on personal computers and tablets.
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  1. Dave Patrick 426K Reputation points MVP
    2021-12-01T18:26:01.253+00:00

    If an SSU is required then trying to install the CU without it will result in "not applicable" error message.

    --please don't forget to upvote and Accept as answer if the reply is helpful--


  2. Dave Patrick 426K Reputation points MVP
    2021-12-01T19:01:55.887+00:00

    Maybe read on here.
    https://learn.microsoft.com/en-us/windows/deployment/update/waas-overview

    --please don't forget to upvote and Accept as answer if the reply is helpful--