troubleshooting Question

Virus - Security

Avatar of Jegajothy vythilingam
Jegajothy vythilingamFlag for United States of America asked on
Software FirewallsVulnerabilitiesOS Security
12 Comments1 Solution524 ViewsLast Modified:
My OS is win 7 Prof 64 bit and I have Mcafee total protection. Also I use office 2007.  I use IE10.  Las tnight I ran a mail merge of emails of about 150 emails, and since it was a one page graphic file, prersumaly it was taking some time, so I left the pc on while Outlook sends all the emails.  And since I had McAfee, thus I was confident of any intrusions.
However, I was wrong, this morning my screen was frozen with a hacker demanding that he was from the FBI, etc and noticed that I was browsing porn sites and thus demanded payment of US$300 unlock my pc.  
Hope one of the Gurus can please advise  rookie how this could happen especially when the pc was on sending the emails thru Outlook.  Is there a security hold in IE10 or anything else that I should know to plug the holes in my pc securitywise.   Should I install additional firewalls like ZoneAlarm or some other.  I usually turn off my pc whenever not in use, except when it is running a virus scan or a program like Outlook.
Hope the Gurus can help to solve this problem.  Thank u.
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