I have updated my windows, it says my WIndows 7 is a not an original copy. It definitely is and it also has de activated my anti virus program after this. What should I do?

Many users experimented this problem after installing the Beta release of the Windows 7 Service Pack 1: if this is the the case, download the final release of the Windows 7 Service Pack 1 from the following web address http://www.microsoft.com/download/en/details.aspx?id=5842 remove the installed one, reboot your system and install the Service Pack. Also take a look at the Microsoft Knowledge Base article published at the following web address http://support.microsoft.com/kb/2008385 Bye.Luigi Bruno - Microsoft Community Contributor 2011 Award