I made the mistake of calling the pop up when it said, YOU HAVE A VIRUS ON YOUR COMPUTER. PLEASE CALL THIS 855 NUMBER. DON'T SHUT OFF OR LOG OFF OR ALL YOUR INFORMATION ON THE COMPUTER WILL BE LOST. That is a lie. They told me they are part of Microsoft, I called Microsoft afterwards & they said this company is not on their list but it was too late. They claim they clean my computer but my computer is worst then before cause there wasn't anything wrong with it in the first place. Just wasted $100 for nothing. Now I have to hire another tech support co. To clean up their mess & worry about whether they are doing something to my computer. Please don't for this scam like me. No one there is English speaking so hard to understand too.