I have a Lenovo T430 laptop that came with MS 7 64. The only thing I changed out was the hard drive to an SSD and the single channel 4 gig RAM to 8 gig dual channel. Both were done over a year ago and I had no issues with these upgrades at all. Now I don't use my laptop for anything else than business and only that while I am on the road. To be honest I hadn't touched it since late April 27 when the last MS updating occurred (many times it has sat shutdown for long periods without any problems). Tonight I decided to boot it up to upgrade said system. As soon as the desktop screen loads I get the message that my OS is not genuine. When I check my System Status under the Control panel the Windows Activation section shows no activation nor any Product ID. It's blank which was never the case prior to now. I ran Avast and Malwarebytes and there were no infections. I have not added anything to the system, i.e. software of any sort, apps, etc. Was there an update in late April that caused any issues such as this? I am stumped so any advice will be welcomed.Thank you.