Users usually encounter this error, because the access is denied as you have used the incorrect key. In this blog, you will read the method to fix Window 11 Activation Error 0xc004c003. For more assistance, just tap on www.office.com/setup.
Method to Fix Window 11 Activation Error 0xc004c003:
1. Use Command Prompt Command to Activate Windows 11:
First, you need to tap on the Windows key and then write cmd on the search bar. After this, you should right-tap on Command Prompt and then choose Run as administrator. Here, you should hit on Yes option if asked by User Account Control. Then, add Key in the command and just hit on Enter button:
At this point, tap on OK button and just restart your device if the request is successful. At last, you need to open the activation page and then check the error has resolved or not.
2. Check Windows Version:
The customer should hit on Win key + I key at the same time to open Settings. After this, you should hit on System and just scroll down and then tap on About option. Now, you need to scroll down to the Windows specification section. Then, you have to find the Edition section just to view the Windows 11 edition which is installed in your computer. If you find that Windows 11 matches the previous edition, then this will not lead to this error.
3. Get Microsoft to Reactivate Windows:
When you register for Windows 11 license, then it will link itself with the hardware in your device. Here, the users should not manually activate Windows in their OS, if they make a clean install. In case, the ser made changes with hardware, then Microsoft cannot verify it and then the error appears. To fix this issue, you should use Digital Product Key or just run the troubleshooter to activate Windows. You can use the Microsoft’s resources to reactivate Windows 11.
4. Switch to Windows 11 Home:
In case, you use the Home edition to upgrade your device to Windows Pro from Windows 11 Home, then activation error appears. Hence, you should downgrade to the previous version when you upgrade to the Pro version.
5. Adjust Registry to Install Windows 10 Home:
First of all, you should hit on Win key + R key just to open the Run dialog box. After this, you must add the Key in the code and then tap on OK button. Now, you should tap on Yes option if asked by the User Account Control:
Here, you should go to the code in the Registry Editor:
And in the right, you need to find and then double-tap on the ProductName value. At this point, you should type Windows 11 Home Single Language and then tap on OK option to save the changes. Here, you should double tap on the EditionID Value. After this, you should write CoreSingleLanguage and then hit on OK to save changes. Next, you need to go to the location in the Registry Editor:
Then, in the right side, you should look for the ProductName value and then just change it to Windows 10 Home and just tap on OK option to save the changes. Here, you have to double tap on EditionID and just change it to CoreSingleLanguage and then tap on OK to save the changes. Lastly, close the Registry Editor.
If the customer need more detail about this Window 11 error, then go to office.com/myaccount.