I was out this morning and the same outfit rang 3 times this morning. They rang again this afternoon and this time I decided to play along and kept it going for 25 minutes before I rang off. They rang back several times after I rang off and have just rung again. So there is little doubt that this is the most persistent criminal outfit I have encountered with this type of scam.
Firstly they got me to run the Windows Event Manager, got me to look at various reports which had yellow and red warnings by lots of entries. Every computer will have these and they mean very little and are nothing to be concerned about (unless you are experiencing serious Windows problems).
Secondly they got me to run MSCONFIG and look at the services page. This lists many applications and some are running and some are stopped. The outfit who rang me said that this was another sigh of problems on my computer. That's rubbish as applications only run when they are needed.
Thirdly they wanted me to go onto a website so that I could get the software I needed to rectrify the problem. Although I made a note of the website, I didn't go on to it as that is almost certainly how they either take over your computer and hold the files to ransom or it's full of viruses and malware. A search on the name of the website merely shows that it's a registered domain name which is what I would expect if it's set up by criminals.
Fourthly, to try to convince me that they were genuine, they asked me to go into the MS-DOS screen and type in ASSOC. That produces a long list of stuff but right at the end is the serial number of my computer. It was rather alarming when they were able to quote me that number. However I have now found out that it is not the serial number but a number which Microsoft uses and is the same number on most Vista and Windows 7 computers. The number starts with 888DCA6D and ends with 7D062. So when the scammers quote that number which you think is your serial number, they are lying - they have no information about your computer.
So I told them that I would have a word with my computer shop which is close to where I live and rang off.
I've gone to some length with this post so that people who get this type of phone call are not fooled by them and just because they might have information as to serial number doesn't mean that they are genuine. The fact is that Microsoft do not ring people out of the blue.