My spyware doctor has discovered trojan.goldun But it can't remove it. When I try to remove it with spyware doctor it asks for a restart and after that windows will not start and the only way for windows to start is system restore. I have nod32 2.7 and it doesn't recognize the threat. I have also tried to format the drive and reinstall windows and I still got it Even after erasing the disk thoroughly with acronis. I use windows vista enterprise x64. I have already tried to use avenger but it doesn't work with my operating system. I have also tried a tool from prevex but it didn't discover any thing.