Comantra, based in India, are said to have cold-called computer users in the UK, Australia, Canada and elsewhere. Claimed to be representing Microsoft, and used scare tactics to talk users into opening the Event Viewer on Windows. Users would be tricked into giving them remote access to their computer, and handing over their credit card details to fix any problems in the scam. In the past, vulnerable elderly people have even been told by scammers that”]
Source: https://grahamcluley.com/microsoft-dumps-partner-telephone-support-scam/