I received an email ( which Windows LiveMail highlighted in red) which was automatically deleted. The following day I received three phone calls, purporting to be from Windows, which sounded like a very noisy call centre in Asia. I could hardly understand their english but they said that my computer had downloaded some malware and I needed to follow their instructions. I was told to type assoc in 'run' but at that point I got cold feet and decided to terminate the calls.
I said that I had run a scan and nothing had been detected but they insisted that Windows Defender would not detect this particular threat and I should still follow their instructions. I also asked for their contact number which they all refused to give. Not being computer savvy, I always err on the side of caution.
Would this be considered genuine - normal Windows practise?