Hi Dormant
My name is Sarah Kong and I am an independent adviser that is here to try and help you with your issue.
I would highly recommend resetting your PC.
So do a full back up of your data first.
Then go to start - settings - update and security - recovery
And click Get started under Reset this PC.
Might seem extreme but if the antivirus can't even get rid of the virus then this is best solution to make sure it is gone.