I have been called by these people twice now..they have a heavy east-indian accent, This is a scam to get you to allow them control of your pc, and to get $$$ from you. They didnt last long the 2nd call after I told them I work for Microsoft!! LOL!!
Click on link which will explain everything....

2012 Update on

 

WTF...post about a computer scam then ask me to click on a link LMAO

 

LOL! I can see where that would be suspicious!!