|The virus probably disabled the USB ports somewhere in the registry and even reinstalling the drivers doesn't reset them.|
I know you've got antivirus software installed but try downloading and running malwarebytes:
That's the free version and appears to be a new one. See if it turns up anything. When you install it, it'll ask about upgrading. Just ignore that and run it as it is.
You're not really green until you're soylent green.