Call from heavily-accented female who told me I have lots of viruses and malware on my computer. I asked where she was from - Windows department(!) I pretended to be shocked and asked her how she could tell and she got me to open event viewer - which I did, to see the normal number of errors and warnings. She sat there while I pretended to delete them all, then tried to get me to connect to some very dodgy-sounding website, which I was not about to do, despite virus & malware checkers running in the background. I asked her some more questions but the answers were extremely vague and unhelpful. Finally, after 20 minutes or so I told her I understood exactly what she's doing, and that I had kept her on the phone to prevent her from calling someone who may not understand that this is either a scam (credit card details for a guaranteed fix... not) or, I suspect, to pick up drive-by ramsonware from their website. She tried to shout me down, but hung up when I explained exactly what I was doing and why.
United Kingdom