Overview
If you see the error message "It looks like the hardware on this device has changed. Make sure you are connected to the internet and try again later. (0xc0ea000a)", it means that Windows activation servers are unable to validate your product key due to a hardware change.
Follow the steps below to reactivate Windows using your product key.
Step 1: Open PowerShell as Administrator
Click on the Start menu.
Type PowerShell in the search bar.
Right-click on Windows PowerShell and select Run as administrator.
Click Yes if prompted by User Account Control (UAC).
Step 2: Enter Your Product Key
In the PowerShell window, type the following command:
slmgr -ipk YOUR-PRODUCT-KEY
Replace YOUR-PRODUCT-KEY with your actual Windows product key.
Press Enter.
Example:
slmgr -ipk 82312-ABCDE-AB89X-1234GF-567YA
Step 3: Activate Windows
In the same PowerShell window, type:
slmgr -ato
Press Enter.
Wait for the activation confirmation message.
Troubleshooting
If activation fails:
Ensure your device is connected to the internet.
Double-check that you entered the correct product key.
Restart your PC and try again.
If the issue persists, go to Settings > Update & Security > Activation and follow the troubleshooting options.