com---support.host pop-up can't be trusted
com---support.host alert is a phishing scam having annoyed lots of computer users. This nuisance, once getting in, will battle with you for the command of browser relentlessly. You may always get a pop-up overlapping your webpage with a url pointing to hxxp://microsoft.com---support.host/Windows/Security/Scan/Warning while using the browser. Before you click to opt out, another pop-up holds your screen and it may say that your computer has been blocked and you need to call a number immediately.
