You should not play around in the Registry unless you know what you're doing, even if you know it's related to a virus it could cause damage.
I suggest you download a program like AVG
, The Cleaner
and clean your computer.
In future, do not
- Click on URLs which are advertised to you, either in channel or in PM (Private Message).
- Accept files from people you don't know.
- Open emails from people you don't know, or open email attachments.
You should also always have a working and up-to-date AntiVirus program running on your computer at all times, and if it has an "Auto Protect" feature, have it enabled.