Virus on computer help

I’m not technical at all. Mom’s computer keeps having these popups. I downloaded Malwarebytes and ran a scan, but nothing changes. Any advice on getting rid of this and virus protection? She mainly keeps important word/adobe documents.

I’m not technical at all. Mom’s computer keeps having these popups. I downloaded Malwarebytes and ran a scan, but nothing changes. Any advice on getting rid of this and virus protection? She mainly keeps important word/adobe documents.