1. To activate your OS go to Start→Computer→Properties
2. Under TAB “Windows Activation” you will see text “xxx days to activate OS”
3. Click on it and press “Activate Online”.
4. Your OS should be now activated in trial mode for atleast 120 days.
5. We do not provide OS keys, you will have to bring your own OS license.
In most cases you won't even have to do this,as VPSes are usually delivered with 180 days pre-activation.