Fake "windows support" call, claiming "infections" and using first-line callers to filter out gullible victims with windows machines to send to "supervisors". Caller got abusive and made threats.
+12125845249 then rang again with CLID +1258945. Using fake CLID

Report every such call to Microsoft for investigation and action.
http://blogs.microsoft.com/cybertrust/2014/09 ... oft-phone-scam/