No. these things did not all happen at the same time. The McAffee came loaded and only valid for a year. I had wondered whether it is Windows updates are causing this. I say that as on my other laptop using Window 10, a Dell, the driver for a WiFi Samsung stopped working after a Windows update.
One final thing on the Acer laptop, when I tried to load AVG software, the exe program appears on the bottom bar, on the left, but behind the windows, files, exploer, chrome, etc icons, making it impossible to run the programe as I can not click on it.