That would be "James Anderson" who has called me previously.  Funny but I have just been watching him on TV with the England Cricket Team in the UAE.  He really gets about, doesn't he. The telephone number is fake, via Skype or VOIP and the call would be from India. This scam has been going on for ages and was on "You've Been Scammed", BBC1, last November. They want remote access to your coputer and will install spyware/malware to steal your info. As you ISP told you, neither Microsoft or its partners would ever 'phone you.  It would be a breach of their privacy rules.  No-one who 'phones has any knowledge of your computer. They rely on scare tactics and lack of computer knowledge.

If you gave them remote access to your computer, it would be wise to get it checked out locally as they could have installed spyware/malware to steal your info.

SCAM SCAM SCAM!Another obvious scam using a currently familiar theme, complete with equally familiar fake posts from satisfied customers using "call centre" English!

Avoid these calls like a plague! It is a SCAM targeted at people with limited knowledge on internet security/computers. Please avoid and report if possible. Do NOT provide any details. Microsoft will never call you for access to your computer thru a 3rd party vendor.

I too had a call from that very famous company and they told me that my computer is infected with a trojan fileI was amazed that how do they come to know that,however they gave me assurance that they are not any xyz company and can certainly  help me to sort the mess out. I gave them the access of my computer and Jesus my  computer was working fine.

SCAM SCAM SCAM!
Another obvious scam using a currently familiar theme, complete with equally familiar fake posts from satisfied customers using "call centre" English!