0x803FABC3

Question

After reinstal windows 11, windows says that my copy its not original what a BS. I am 100% sure it is original, but MS will whatermark my monitor so how do you fix that?

it say this code 0x803FABC3

Microsoft support is completly hopeles, no one answer the phone ever so HOW?

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Moved from: Microsoft Security | Active Directory Federation Services

Answer 1

The error code 0x803FABC3 typically indicates that there is an issue with the activation of your Windows operating system. Here are some steps you can take to try to resolve this issue:

1. Check Your Internet Connection: Ensure that your device is connected to the internet, as Windows needs to connect to Microsoft servers to validate your license.
2. Run the Activation Troubleshooter: Go to Settings > Update & Security > Activation, and select Troubleshoot. This may help identify and fix activation issues.
3. Re-enter Your Product Key: If you have a product key, you can try re-entering it. Go to Settings > Update & Security > Activation and select Change product key.
4. Use Command Prompt: Open Command Prompt as an administrator and run the following command to re-register the licensing service:

      slmgr.vbs /ato
   

   This command attempts to activate Windows again.
5. Check for Missing Registry Entries: Sometimes, missing registry entries can cause activation issues. You may need to ensure that the necessary registry keys are present, particularly under:
   • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-18
   • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-19
   • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-20
6. Contact Microsoft Support: If the above steps do not resolve the issue, you may need to reach out to Microsoft Support again for further assistance. You can also check their online resources for additional help.

If you continue to experience issues, it may be beneficial to gather information about your system and the error for a more detailed support request.

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References:

• Windows is not genuine error