Event details
Joe_Lurie
Microsoft
MicrosoftRyanSteele-CoV Thanks for the question. This is not a key/value that we publicly document, so we don't have anything to share here. I can tell you, though, that this reg key is used by some Windows Update components as a flag to direct the client to offer or perform an in‑place upgrade (IPU) under certain remediation or admin‑initiated scenarios. Sorry we can't get deeper into the nitty gritty here.
Thanks for responding. If you are able to share feedback with whoever is responsible for this: as long as Windows is prone to getting into a state where updates can no longer be installed, administrators need a way to remotely initiate an in-place reinstall. This is a security issue.