[MikeyB]

I had a similar one a few months back, just happened to be at home on a day off from work.
Definitely over seas, on a very poor line.

Said he was from a very generic company name, something like Computer Support Ltd, and phoning on behalf of Microsoft.
He said that Windows on my computer had been sending error messages to MS and that they could fix it for me.
Asked me to go to "The Google" and search for there website, and download some software.

Of course, I was having none of this, but to waste his time, kept him on the phone for about 5 minutes, saying I have all up to date firewalls & virus software, and there were errors, I'd know about it!

I was asking if they know the errors, what version of Windows was I running, and they got it wrong, twice, 1st saying Windows 7 then Vista, but I'm still on XP!

During all this he was quite adamant that I had errors, and they could see them.

The call ended when he asked if my phone number was (random numbers), when I said no he said sorry, must have the wrong phone number and hung up.