Open HijackThis and do a scan.
Put a tick next to these lines:
Delete these folders:
C:\Program Files\ActivationManager
C:\Documents and Settings\All Users\Application
Data\live 64 math does
This file:
C:\WINDOWS\system32\813C19FE84.dll
Move it to the Recycle Bin. In case something crashes it, you
can recover it back from the Recycle Bin. If everything works fine,
empty the Recycle Bin.
You know anything about these folders?
C:\Documents and Settings\All Users\Application
Data\55-55-55-55-55-55
C:\Documents and Settings\All Users\Application
Data\n7-89-o9-3r-4t-r9