How to fix error 0xC004C008 - Windows 11

If error 0xC004C008 shows up then please proceed with Phone Activation process:

  1. Type "SLUI.exe 04" in Windows Taskbar
  2. Select your Country and then click next
  3. You will see your Installation ID (eg.
  4. Call the Toll free number and they will provide you your Confirmation ID to Activate your Windows

YouTube Video Tutorial:

If you don't want to contact the Toll-Free number or their services are busy then you can send us the screenshot of Installation ID and we will contact them on your behalf and provide you the Confirmation ID.

- Please send the Installation ID screenshot to "" and they will get back to you as soon as possible.

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