Microsoft Windows 10 Pro

Windows 10 pro OEM activation key

Permanent and Guaranteed License Key
Lifetime Activation and One-time purchase for 1 PC (no additional fees)
The Product key is valid for all languages and regions
Works on both 32-bit and 64-bit systems

The activation key is a 25-digit code that looks like this:

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

How to activate Windows 10 Professional using an activation key
During the installation of Windows 10 Professional, you will be prompted to enter your product key. Or, after installation, to enter the key, click the Start button, and then select Settings > System > Activation > Update product key > Change product key.