A man called "jack" called and said he was from Microsoft Tech Support and that their servers had detected viruses on my computer.
HAH! It's the old MS Tech scam.. DON'T fall for it. Hang UP!
MS will NEVER call you with such a request which ultimately leads to you - at best -buying unnecessary/worthless software and worst; having files erased and malware or Trojans installed.
Again.. HANG UP! Do not fall for this scam.