Windows 10 will automatically

 To activate Windows 10, you can either use a valid product key or a digital license. If you have a product key, you can enter it in the Activation settings. If you have a digital license, you can usually link it to your Microsoft account, and Windows 10 will automatically activate once you sign in. 

Here's how to activate Windows 10:

1. Using a Product Key:

• Open Activation settings: Go to Start > Settings > Update & Security > Activation. 
• Change Product Key: Select "Change product key" and enter your 25-character product key. 
Activate Windows: Click "Activate" to activate your copy of Windows. 

2. Using a Digital License (Linked to Microsoft Account):

Open Activation settings: Go to Start > Settings > Update & Security > Activation. 
Sign in to your Microsoft Account: Ensure you are signed in with the Microsoft account associated with your digital license. 
Windows 10 should automatically activate: Once signed in, Windows 10 should automatically activate. 

3. If Activation Fails:

Troubleshoot:
You can use the Windows Activation troubleshooter by going to Settings > Update & Security > Activation and selecting "Troubleshoot". 
Follow the prompts:
The troubleshooter will guide you through potential solutions, including re-entering your product key or verifying your digital license. 
Consider a hardware change:
If you recently made a hardware change (like replacing a hard drive), you may need to reactivate Windows using your product key or your Microsoft account. 

4. If you need to activate over the phone:

Open Activation settings: Go to Start > Settings > Update & Security > Activation.
Activate by Phone: Select "Activate by Phone".
Follow the prompts: You will be guided through an automated menu or connected to a support person to complete the activation process. 

5. If you have an activation error:

Check your internet connection: Ensure you have a stable internet connection for online activation. 
Restart your computer: A simple restart can sometimes resolve minor activation issues. 
Contact Microsoft Support: If you're still having trouble, you can contact Microsoft Support for assistance.