Sửa mã lỗi Kích hoạt Windows 0xC004F074


When you try to upgrade your computer to Windows 10, you get Windows activation error 0xC004F074; then the cause may be due to version mismatch between KMS client and KMS server.

0xC004F074 – Key Management Server (KMS) is not available

This error can also occur when there may be a time difference between the KMS client and the KMS server.

Windows activation error 0xC004F074

Windows activation error 0xC004F074

If you receive the Activation error code 0xc004f074, then make sure your copy of Windows is fully up to date first. Once done, follow these suggestions to resolve the issue:

  1. KMS . product key setting
  2. Using the Activation Troubleshooter
  3. Time re-sync.

1]KMS . product key setting

You will have to uninstall and then reinstall the product key by running CMD as Administrator.

Now to uninstall the existing key execute the following command:


To install the KMS Product Key, execute the following command:

slmgr.vbs/ipk <The KMS Product Key>

Transfer Windows 10 license to another computer

Once done, you will receive a prompt about whether the operation was successful.

To enable the online key, execute the following command:


To learn how to enable it by phone, execute the following command:

slui.exe 4

After activating the KMS key, restart your computer.

You can also then verify the Activation Status to check if your fix was successful.

Related reading: Fix Windows 10 activation error code 0x8007007B.

2]Use the Activation Troubleshooter


The Windows 10 Activation Troubleshooters will help you solve the most common activation problems on Windows devices.

If you cannot activate Windows 10, open Settings > Update & security and click the Activate button on the left panel. Next, click the Troubleshoot button.

3]Time to re-sync

Run the following command to resynchronize the time on the client:


See if this helps you.

Read more: Troubleshoot Activate KMS on Windows Server.

Fix error 0xc004f074 to activate when changing Windows 10 Editions

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