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Windows 11 Activation 0xc004c020

msft wndwsofis 0 Reputation points
2025-08-09T10:28:38.6066667+00:00

Hello,

i bought a laptop with Windows 11 Professional preinstalled however cannot activate my license because of the following error message 0xC004C020

Can anyone help me in getting this issue resolved?

Windows for business | Windows Client for IT Pros | User experience | Other
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  1. Harry Phan 65 Reputation points Independent Advisor
    2025-08-12T04:15:05.25+00:00

    Hi msft wndwsofis,

    The error code 0xC004C020 typically indicates that the product key you're trying to use is part of a volume license that has exceeded its activation limit.

    If your laptop came with Windows 11 Professional preinstalled, the license should activate automatically. Here are a few steps to try:

    1. Go to Settings > System > Activation and click Troubleshoot to let Windows attempt automatic resolution.
    2. If that doesn’t work, confirm the product key by running slmgr /dli in Command Prompt (admin) to check license type.
    3. If the key is invalid or blocked, you may need to contact the seller to verify the legitimacy of the license.

    I hope it works for you.

    Harry Phan.

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