Cannot reactivate windows after updating BIOS

Ben P 0 Reputation points
2026-11-14T21:05:23.2166667+00:00

I purchased a digital retail version of Windows 11 Home and linked it to my Microsoft account on a computer. I then updated the BIOS for this computer and received the error 0xc0ea000a when attempting to reactivate Windows. I have a stable internet connection and used the troubleshooting tool. I selected the option stating that I changed hardware recently, and the pop-up states that it is unable to activate Windows because it can't find any devices linked to my Microsoft account that can be used to reactivate the device I am using right now. I am certain that I am using the same Microsoft account on my computer as the one I purchased the license on. When I am logged into my account, I can see the linked devices, and one of them is the computer on which I updated the BIOS.

Windows for home | Windows 11 | Licensing and activation

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  1. EmilyS726 280.7K Reputation points Independent Advisor
    2026-11-15T00:09:35.8066667+00:00

    The partial key actually indicates that it was not activated digitally. Do you recall receiving a 25-digit license key from Microsoft, arriving separately, usually 24-48 hours after the purchase confirmation email? Looks like you might have entered the key instead then to activate it. If so, see if you can find the key, and enter it via Windows Settings > System > Activate > Change Product key.

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