Windows 10: How to reactivate a Windows license key?

So recently I activated an old PC with a new windows product key purchased from a shop. After a day, the PC isn't working. So with my laptop, I go online and deleted the computer profile that was activated with the windows key. Now I bought a new motherboard and cpu and trying to re-activate with the same new windows key purchased a week ago, it didn't work and said it's already activated with another device. What can I do? Thanks!

:)

 

Product Key Reactivation

Hi

Thanks for your reply.

Reactivating Windows 11 after retrieving the motherboard key involves using the original product key or digital license associated with your system.

Here are the steps to reactivate Windows 11:

1. Open Settings:
   
   • Click on the Start button and select the gear icon to open "Settings."
     
2. Navigate to Update & Security:
   
   • In the Settings menu, click on "Update & Security."
     
3. Go to Activation:
   
   • In the left sidebar, select "Activation."
     
4. Enter Product Key:
   
   • If you have a product key, click on "Change product key" and enter the key when prompted.
     
5. Use Digital License:
   
   • If your Windows 11 was linked to your Microsoft account, you might see an option to troubleshoot and link your digital license. Click on this option and follow the prompts.
     
6. Restart Your Computer:
   
   • After entering the product key or linking your digital license, restart your computer.
     
7. Verification:
   
   • Go back to the Activation section in Settings to verify that Windows 11 is now activated.
     

 

Windows License Key

Windows 10 Digital License

When you upgraded from a previous version of Windows or receive a new computer preinstalled with Windows 10, what happened is the hardware (your PC) will get a digital entitlement, where a unique signature of the computer will be stored on Microsoft
Activation Servers. The Windows 7 or Windows 8 genuine license you were previously running will be exchanged for a diagnostics key.

Anytime you need to reinstall Windows 10 on that machine, just proceed to reinstall Windows 10. It will automatically reactivate. You will prompted to enter a product key a couple times through the installation, click I don't have
a key and Do this later.

There is no need to know or get a new key, but if you have issues with Digital Licensing or the Activation Troubleshooter, you can utilize an existing Windows 7 or Windows 8/8.1 product key you already own to
reactivate if necessary. or use the reset function in Windows 10.

Activate Your Windows 10 License via Microsoft Chat Support

Reinstall by Performing a Direct Clean Install

If Windows 10 was already installed and activated on your system, just proceed to perform a direct clean install as described in the following articles.

Step 1: How
to download official Windows 10 ISO files

Step 2:

• How to: Perform a clean install of Windows 10

 

Volume Key Verification/Upgrading Windows 10 Version

Learn how to transfer the license and reactivate by chat support:

Step 1:

• How to Transfer your Windows 10 License to a New Computer

Step 2:

• Activate Your Windows 10 License via Microsoft Chat Support