How to Get Rid of 6ytykz-capture-trk.xyz Warning Page

6ytykz-capture-trk.xyz popped up on mom's computer after click on FB photo link to call this Microsoft number. Person remotely accessed mom's computer saying was infected with viruses, reconfigured password, and wanted credit card# to fix for $199.00 but she refused and now does not have password to start-up computer. 

What  is 6ytykz-capture-trk.xyz?

6ytykz-capture-trk.xyz is a phishing website which is so risky and has the ability to change the browsers settings forcibly. Pop-ups from 6ytykz-capture-trk.xyz always claim that your PC has so many viruses and you need to contact computer experts immediately to have a check. In order to draw users' attention, 6ytykz-capture-trk.xyz keeps displaying numerous pop-ups within web browsers.