
The caller never got the opportunity to make whatever sales pitch he had, because the woman's husband told her to get off the phone, because it was a scam. I'm sure that if she'd remained on the line, the caller would have offered some line about being able to fix the "corruption."
The Better Business Bureau (BBB) issued a caution message about fake calls from Microsoft, saying they appear to be an attempt to gain remote access to your computer so they can cause all kind of misbehavior.