Update for Windows Security platform - KB5007651 (Version 1.0.2109.27002)

So, are you suggesting I unhide this update and try again? If trying again, how would one try (i.e. long edit registry, short repair/reset of windows update, A/V on/off, do nothing - just unhide only, etc.)?

So, are you suggesting I unhide this update and try again? If trying again, how would one try (i.e. long edit registry, short repair/reset of windows update, A/V on/off, do nothing - just unhide only, etc.)?

Per my earlier posts, I unhid it, retried WU several times, and it has disappeared, probably pulled. I'd suggest you unhide it, recheck via WU, and if you see no trace of it anywhere, then carry on as usual.

As Microsoft now employ the user base as post release guinea pigs, we can be pretty sure that they'll fail to inform and fail to act promptly. Business as usual there.

Okay, thanks...will give it a go and let you know

what can I do to activate my windows installed by someone who has access to the product key?

Windows installation can be anyone without product key, but to activate windows you need to enter the received product key or purchase it from online stores.