Admittedly it would be a bit of hassle but you could system restore back to the date before you installed the updates. Try the things that are causing the present problems and see how it goes. If all seems well then install the updates one at a time ( if i remember there wasn't that many last time ) , running the pc in between to see if the updates affect anything. If it is a particular update that's at fault you're going to be able to detect it.
You may not fancy going down this route , that's your prerogative , but if it were me , my concern would be that things may deteriorate . I certainly wouldn't take the chance that the pc could end up , well..........rebooting.