Some of our clients have reported phone calls claiming to be from 'Microsoft' or an internet provider saying that their computers have viruses on the hard drive and they could talk them through 'fixing' the problem. These unscrupulous individuals then talk you through changing settings which disable all your firewall and antivirus software and fool you into thinking your system is crawling with viruses! The police know about these scammers, they ask for your credit card details to pay for software which they will download to your computer to 'fix' the problem.

Gentle readers, Microsoft doesn't give a flying fish about you! They never contact anyone about anything.
This a scam to get your money, don't fall for it.