Fix Windows Activation error code 0xC004F078

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Windows 11/10 has a complicated mechanism for Activation. It helps in the verification of a 18-carat re-create of Windows 10. But sometimes, information technology throws the mistake lawmaking0xc000f074.It is acquired if the Fundamental Management Service or KMS is not reachable by the client computer or if the key used in the SLSetAuthenticationData function call is incorrect. This error code mostly surfaces on computers that are upgraded to Windows 11/10 from an earlier version.

The error could appear as either of the following depending upon where you lot encounter information technology:

Windows is unable to reach your visitor's activation service. Please connect to your corporate network. If y'all are connected and continue to meet the fault, contact your organization administrator. You can likewise click on the error detail to find the verbal error. Mistake code: 0xC004F074.
Activating Windows(R),
(Key hash)…
Error: 0xC004F074 The Software Licensing Service reported that the figurer could not be activated. No Fundamental Direction Service (KMS) could be contacted.
Delight see the Application Event Log for additional information.
Mistake 0xC004F078, SL_E_AUTHN_MISMATCHED_KEY, The Software Licensing Service reported that the key is mismatched.

Windows Activation error 0xC004F078

If you lot cannot actuate Windows 11/10, so here are some method to fix the Windows Activation mistake 0xC004F078:

Use the correct central for your type of Windows copy
Employ Command Prompt to reinstall the key.
Apply the Activation Troubleshooter.

1] Use the correct fundamental for your blazon of Windows copy

Check the blazon of your Windows copy – Is it OEM, Retail or Book? – and ensure that yous are using the right, valid product key for your system.

2] Apply Command Prompt to reinstall the cardinal

Run the Command Prompt as Administrator. Now execute the post-obit commands:

To uninstall the existing key, enter:

slmgr.vbs /upk

To install the KMS Product Key, enter:

slmgr.vbs /ipk <The KMS Production Key>

Once done, you lot volition become a prompt whether the performance was either successful or not.

To actuate information technology online, blazon:

slmgr.vbs /ato

To activate it using the phone, type:

slui.exe 4

After activating the KMS key, restart the Software Protection Service.

You can then also verify the Activation Condition to check if your fix was successful or non.

Read: Troubleshoot KMS Activation on Windows Server.

3] Use the Activation Troubleshooter

You can run the Activation troubleshooter. The Windows Activation Troubleshooter will help you lot address near commonly encountered activation bug on Genuine Windows devices including those caused by hardware changes.

Promise these fixes accept helped you.

Links that may help you:

Troubleshoot Windows Activation States
Windows Activation Fails
Windows Activation Server is not available.

Anand Khanse is the Admin of TheWindowsClub.com, a 10-year Microsoft MVP (2006-16) & a Windows Insider MVP. Please read the entire post & the comments outset, create a System Restore Point before making any changes to your system & be conscientious most any 3rd-party offers while installing freeware.