Please provide more information on the problem you are experiencing, if this a Windows activation problem?
1
If so, what happened on your PC before Windows was not activated.
2
Where did you get your Windows licence was that pre-installed on the PC or did you purchase a full retail Windows licence from Microsoft or from a 3rd party retailer, and if so, do you have the product key?
Or is your Windows licence based on a previous Windows 7 or 8 licence?
3
Click your Start Button, type cmd then right click Command Prompt and choose 'Run as Administrator'
Run or paste this command and hit Enter:
slmgr.vbs /dlv
Please post a screenshot of the resulting dialog