Had a call like this from someone from epro solutions contacting me saying there was something wrong with my machine, they said something along the lines the a computer was sending windows error reports because there's a serious issue with a computer running windows and that they're working with microsoft/ your isp (which is false) to contact people to fix the issue on their behalf.
Looking online some people here have had simillar storys here: http://forums.computing.co.uk/showthread.php?t=199754
Looking online some people here have had simillar storys here: http://forums.computing.co.uk/showthread.php?t=199754