Ransomware, system restore done.... but is it gone? Please Help

Hi all,

I'm new on here but have already found some usefull information :smileyhappy:.

 

My name is Pete, I have a Sony Vaio running Windows 7 and Norton 360 installed and running live. I was unlucky enough to have the AICS (Automated Information Control System) Metroplolitan Police Ransomeware infect and locked my Laptop yesterday evening. As the computer in only 2 weeks old and I have no important files etc on it, I ran a system restore to before the infection happened (I was able to do this, not sure why as I've heard many of these ransomwares block this). I then did a full scan with Norton and it came up clean. Everything seems to be running as it was but I'm worried I have not removed the Ransomware virus but just coivered it up. I will be using this Laptop for my Uni work again in 4 weeks time and really cannot risk it still being infected. Please Help.

Any advice/experience would be very much appreciated.

Thanks very much.

Pete