There are a lot of PCs in this house and all are happily running NIS 2013 except a Sony Vaio laptop VPCX115KX. It is a 32 bit system running Win7 Home Premium. This little laptop has run NIS 2010, 2011, 2012 just fine, but it won't even let me try to activate 2013 or update it. There is plenty of time left on the subscription. I can go back to 2012 but it just doesn't like 2013. Is there some compatibility issue. It seems my choice is to stay with 2012 or go to McAfee. Any enlightenment would be appreciated.