0xC004F211 since BIOS update

James Grimstead 40

Hi.

I did a BIOS update on my MSI Z690 on August 5th. Since then my Windows 11 has deactivated with error 0xC004F211.

I have followed the Troubleshoot. It gives me the option to buy again, or select 'I recently changed hardware on this device'. I selected the latter, but it says there is no device that can be used to activate from.

If I log into my outlook account and look at the list of devices, I see my computer there twice. One is last seen August 5th, when I did the update. The other is, of course, seen recently.

My licence is Retail, the digital licence should have been created from my Windows 7 Ultimate licence when I did the upgrade to Windows 10 and then to Windows 11. It has worked all this time, even after CPU/Mainboard upgrades.

I have tried to re-enter the licence key (both Windows 7 and the one found by ShowKeyPlus), both do not work. The ShowKeyPlus says it is a default key, requires digital licence for activation.

All help paths dead end with 'Buy Windows'. I spent a long time putting the Installation ID only to be told it cannot activate and there is no obvious other path to follow. No phone numbers or email addresses. So I am left with this.

Can someone help me activate my Windows again please? If "Contact Support" is an answer please provide a UK number I can contact, otherwise I'll go in circles with the online help, again.

Many thanks.

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Answer accepted by question author

Neil D 34,110 Volunteer Moderator

You can no longer use a Windows 7/8 licence to activate Windows 11.

In 2023 Microsoft changed the settings and blocked the old licences for activation of Windows 10. This also affected Windows 11 as an upgraded Widows 10 licence was not intended to activate windows 11 only an original Windows 10 licence is allowed for that free upgrade.

I'm afraid the bios update prompted a check on the licence and it has been refused, I don't think any process will allow the activation.

If you wish the challenge the scenario you will need to contact Microsoft support directly. Use the Get Help app in windows and search the phrase billing then select Contact Support at the bottom of the window.

There will be another couple of filters to select then you should see chat with an agent in your browser. Have the original product key to hand.

James Grimstead 40 Reputation points

2026-08-14T15:39:57.0033333+00:00

I've relented and just purchased a new activation. To be fair I've milked the Win 7 licence this far. Just feels like I'm paying for something I've already had until now. Thanks for the support.

Answer accepted by question author

SD - IA 177.8K Independent Advisor

Thank you.

I am afraid there is no contact number for an agent here. Can you tell me if these steps help? Your license is void, and it seems you will need to contact an agent.

Please contact Microsoft Support for further assistance.

Exact steps to reach support:

Please go to the https://support.microsoft.com/en-us/home/contact page.
Click Microsoft Office / Windows depending on the issue.
Click Get Home Support.
Type "Billing" and press Enter.
Please click on the "Contact support" button at the bottom.
Select the Category for support based on your requirements.

I hope this information helps. If you have any more questions, don't hesitate to reach out.

Otherwise, if your problem is resolved, please take a moment to close the question to help others. Wishing you good luck!

James Grimstead 40 Reputation points

2026-08-14T15:45:02.38+00:00

I did manage to worm my way around the activation help to get to the call-back feature. Abishek from Microsoft support kindly helped me, but ended up saying the same as was said in the other reply: the Windows 7 digital activation from my upgrade to Windows 10 has 'gone away'. So I bought a new licence. Thanks for the support.

1 additional answer

SD - IA 177.8K Reputation points Independent Advisor

2026-08-14T12:31:54.87+00:00
Hi,

Get help with Windows 10/11 Activation errors:

https://support.microsoft.com/help/10738/windows-10-get-help-with-activation-errors

https://support.microsoft.com/help/12440/windows-10-activation

To better diagnose the issue,
1. Right-click Start button and Choose Windows Powershell(admin) and type in the following command:
slmgr.vbs /dlv

You will get a window. Take a screenshot and send it in the next reply.
1. Run the activation troubleshooter and send us the output.
Using the Activation troubleshooter-Windows 10/11

https://support.microsoft.com/help/20527/windows-10-activation-troubleshooter

I look forward to hearing from you to get the results of the troubleshooting.
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James Grimstead 40 Reputation points

2026-08-14T12:42:00.56+00:00

None of the links seem to help, I follow the steps and end up in the troubleshoot option.

Software licensing service version: 10.0.26100.8972 Name: Windows(R), Professional edition Description: Windows(R) Operating System, RETAIL channel Activation ID: 4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c Application ID: 55c92734-d682-4d71-983e-d6ec3f16059f Extended PID: 03612-03308-000-000000-00-2057-26100.0000-1252025 Product Key Channel: Retail Installation ID: 522615690206445902930732306541391121899014448938197919251064725 Use License URL: https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail Validation URL: https://validation-v2.sls.microsoft.com/SLWGA/slwga.asmx Partial Product Key: 3V66T License Status: Notification Notification Reason: 0xC004F034. Remaining Windows rearm count: 1001 Remaining SKU rearm count: 1001 Trusted time: 14/08/2026 12:52:09

James Grimstead 40 Reputation points

2026-08-14T12:44:09.7666667+00:00

My device is in my list of devices twice with the same user facing details/name/motherboard type... but one was 'last seen' August 5th when I did the BIOS update.
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0xC004F211 since BIOS update

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