If you attempt to add components (features) to Windows 8.1 Pro, you will be prompted for a key. The product key for activating the system will not work, you need a separate key for the components, which is provided separately. You can purchase it through the Microsoft store.
Additionally, you can purchase a licensed product key for Windows 8.1 Pro (Professional) at the lowest price in our online store. Instant delivery of the key to your email is done automatically. Warranty and 24/7 technical support. For more details, visit our catalog on the next product page.
