Could someone please help me to get my windows back to genuine windows because it keeps saying that my computer could be at risk and that windows is not genuine...thanking you in advance1 person needs an answerI do too

If you are using Genuine Version of Windows and your activation is fail then first check your system date and time and make sure it is correct. If that did NOT resolved then log on to: http://www.microsoft.com/genuine/ And validate windows and see what is the error. If you could NOT resolve it contact Microsoft Support.