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Windows is not activated (0xC0EA000A)

After switching my hard drive into another PC and then changing it back into my current PC both computers are activated I am now getting Error Code 0x0C0EA00A. It looks like the hardware on this device has changed Make sure your connected to the internet and try again later, (I am connected to the internet) I bought my copy of Windows 4 years ago from the MS Store. I tried to look up a product key associated with my purchase to reactivate with but was not able to find anything. Any suggestions?

Hi, CollinGroves

Welcome to Microsoft Community.

We understand that you are experiencing Windows not activated with error code 0xC0EA000A. 

By the way you describe the situation, this could be due to the system detecting a hardware replacement and hence the activation issue. 

You are currently advised to try the following steps: 

1. Open Powershell as administrator 

2. Enter the following command 

slmgr -ipk 

3. Then enter this command 

slmgr -ato 

Example: 

slmgr -ipk 56801-ABCDE-AB89X-1432GF-489MY 
slmgr -ato 

  

If the above steps don't help you to reactivate Windows, I noticed that you purchased a copy of Windows four years ago, then you can contact Microsoft online support by clicking the following link and then provide the relevant order information (since this information involves the privacy of your personal information, contacting an online person for a 1-on-1 is the best option.) , the online support person will provide you with assistance with activation: 

1. Type" Windows activation " and click Get Help. 

2. Click Sign in to contact Support Support at the bottom of the page.  

3. Log in with your Microsoft account.  

4. Under products and Services, select Windows 10/11 Option.  

5. Under category, select Manage profile information. 

6. Click "Chat with a support agent". 

 

Please let me know if you need more assistance.  

Best Regards

Nicholas.Z - MSFT | Microsoft Community Support Specialist

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Question Info

Last updated April 19, 2025 Views 58 Applies to: