Hello
I understand that you’re having trouble changing your Windows license key. Here are some methods you can try:
Method 1: Using the Settings App
Open Settings.
Click on Update & Security.
Click on Activation.
Click the Change product key link.
Type the 25-digit product key for the version of Windows you want.
Click Next to complete the process.
Method 2: Using the Control Panel
Use the Windows key + X keyboard shortcut to open the Power User menu and select System.
Click the Change product key link under the Windows activation section.
Type the 25-digit product key for the version of Windows you want.
Click Next to complete the process.
Method 3: Using Command Prompt
Open the Start menu.
Search for Command Prompt.
Right-click the result and select Run as administrator.
Type the following command using your 25-digit product key and press Enter: slmgr.vbs /ipk <enter your 25-digit product key here>.
Method 4: Using SLUI 3
Use the Windows key + R keyboard shortcut to open the Run command.
Type slui.exe 3 and click OK to open the Windows activation client.
Type the 25-digit product key for the version of Windows you want.
Click Next to complete the task.
Method 5: Using CHANGEPK
Use the Windows key + R keyboard shortcut to open the Run command.
Type changepk.exe and click OK to open the Windows activation client.
Enter the 25-digit product key for the version of Windows you want.
Click Next to complete the task.
Please replace <enter your 25-digit product key here> with your actual product key. If the activation process completes successfully, you’ll get the “Windows is activated” message.