This product is a digital code and you can receive it within minutes when you pay online
To activate Windows 8.1 by phone:
Select the Start button, enter PC settings, and then select PC settings from the list of results.
Select Activate Windows, and then select Contact customer support for help. You may be asked for an admin password or to confirm your choice.
Select your location (or the location nearest to you) from the drop-down list, and then select Next.
Call one of the available phone numbers listed. An automated system will guide you through the activation process.