There is a highjack occurring whereby you get the “Ring Microsoft now on 1-888-xxx xxx xxx”. To read more about it see the Malwarebytes article about it:
If you get a page that tells you to ring MS because your PC has been infected with a virus (it is a piece of code inserted to scam you) use Task Manager to stop the browser as the code uses a technique to lock up the browser (Jam it).
