I attempted a system restore yesterday and it didn't restore. It says source%system root%\registration. So I did a disk check and it showed errors and warnings.
Hello and welcome Nayners for starters I would be so worried about the updates because there is so much crap going on at the moment with them trying to get us to use 10. I always set updates as in my pic and if you do not want to "upgrade":sarc: to 10 there are methods you can set in place to stop it and I can link you to a couple of things for that.
One other Desktop (tester) and spare Toshba laptop both with SSD's
Running Kaspersky 2016 ISS on all machines config'd identically
Logitec audio stereo systems on each machine (x3)
Canon MG5250MFC
Router/modem TP-Link running WPA2SK