windows 8.1 activator

Windows 8.1 activator is a apps to unlock full features of windows 8.1.when we buy /download windows 8.1 we need to activate windows 8.1 so this activator helps to activate windows 8.1.no need to worry about running on demo version of windows 8.1.we just need to download and install windows 8.1 activator and all work is done by activator to unlock windows 8.1...it is very useful apps for user.download it soon.
avarme.blogspot.com/windows8.1activator
 http://kms8activator.com/