Your Windows Product Key or Activation Key

Your Windows 10 Product Key or Activation Key
The method here Applies to Windows 10 Windows 7 Windows 8.1 After you purchase a license key – Product Key from Mysoftwarekeys.com
You will receive your product key along with the Download Link to the e-mail you provide in your payment.

What is a product Key or in other names Activation Key or License Key?

A Windows product key is a 25-character code used to activate Windows. It looks similar to this :

PRODUCT KEY: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

A digital copy from Mysoftwarekeys.com. The product key is in the confirmation email you received after buying it.
Free upgrade to Windows 10. If you upgraded to Windows 10 for free from Windows 7 or Windows 8.1, you should have a digital license instead of a product key. For more info about digital licenses in Windows 10,

Activating your Windows 10