What is win 8 pro key?

Windows 8 Pro Key is a unique code that is required to activate the pro version of Windows 8. This key is provided by Microsoft to its users after the purchase of the Windows 8 Pro software. The key consists of 25 alphanumeric characters that are a combination of letters and numbers. Once the key is entered into the Windows 8 Pro software, it activates all the additional features that are available in the pro version of the software. These features include enhanced security options, Windows Media Center, Remote Desktop, BitLocker encryption tool, and more. The Windows 8 Pro key can be used by one user on one device only, and cannot be transferred to another device.