Win 11 became inactive after recent update on 2026-10-14

Tom Welch 0 Reputation points
2026-10-15T16:29:56.37+00:00

After installation of updates KB5127690 and KB5127648 my Win 11 Pro edition became inactive. I upgraded from Win 10 to Win 11 in Oct 2025 and all has been fine for the past year. No suddenly windows says I need to Activate. How do I fix this ? Will uninstalling these update fix the problem ? Here is output from slmgr /dlv

Software licensing service version: 10.0.26100.9711

Name: Windows(R}, Professional edition

Description: Windows(R) Operating System, OEM_COA_NSLP channel

Activation ID: 221a02da-e2a1-4b75-B64c-0a4410a33"af

Application ID: $5c92734.d682-4d71-983e-d6ec3T16055¢

Extended PID: 03612-03307-129-000002-02-1033-26200,0000.2922025

Product Key Channel: OEM:NONSLP

Installation ID:

"7330115425845122562167853170314700202387315962734572769513463, 2

Use License URL:

https:/activation-v2.sIs.microsoft.com/SLActivateProduct/SLActivateProd uct.asm<?configextension=Retail

Validation URL:

https:/validation-v2.sis.microsoft.com/SLWGA/sIwga.asmx

Partial Product Key: 2GYP4

License Status: Notification

Notification Reason: 0xCO04F200 (non-genuine),

Remaining Windows rearm count: 1001

Remaining SKU rearm count: 1001

Trusted time: 10/15/2026 6:40:29 AM

Windows for home | Windows 11 | Licensing and activation
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  1. DaveM121 939.6K Reputation points Independent Advisor
    2026-10-15T17:09:29.9566667+00:00

    Your licence is indicated as an OEM_COA_NSLP licence, that type of licence is a system builder OEM licence usually installed by a PC builder, not a PC manufacturer, and it is widely reported that a Windows Update or BIOS update may cause that type of licence to deactivate.

    1

    Download the free ShowKeyPlus app from the Microsoft Store.

    On that app, do you find two product keys, an Installed product key and another product key?

    If so, the Installed Key is just a generic key, note down the other product key, then open the activation settings window and try inserting that product key to activate Windows.

    2

    If that does not work, open Command Prompt by right clicking its icon and select 'Run as Administrator'.

    In Command Prompt, run this command and press Enter:

    slmgr /rilc

    In Command Prompt, run this command and press Enter:

    slmgr /ato

    Then, close Command Prompt and restart (not shut down) your PC and check if Windows is activated.

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  2. Tom Welch 0 Reputation points
    2026-10-15T17:36:27.3166667+00:00

    Thank you so much. I was able to Activate Windows using the Original Key shown in ShowKeyPlus. Thanks again !

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