Good evening, As you can see im fairly new to this forum. I've found quite some help when browing here but now I feel like I'm really stuck. NOD32 3.0 worked pretty ok on my XP x64 machine and was rather surprised to see a new version this quick. First I installed NOD32 4 right over my older version, rebooted, and noticed the system to show a blue screen for half a second before it restarted itself again and found myself stuck at the windows boot menu. The only way to get back in windows was by choosing the "Last known working configuration". After that, the NOD32-4 splash screen shows but is then telling the antivirus protection is disabled and I cannot get it enabled without reinstalling. I've tried reinstalling, uninstalling and reinstalling, uninstalling, cleansweaping and reinstalling again and tried a fresh download in case the installer might have been corrupt. So, this is me being stuck... any idea's?