Yep, I've had horrors with Norton too. I now use Zone Alarm Pro.

I run Adaware and Spybot Search and Destroy once a week. I also use CCleaner and, like Acadia, I run Cleanse Uninstaller to get rid of stray apps.

One thing I would advise is that if you're going to use a registry cleaner such as CCleaner, make a system restore point first. That way if anything does go wrong, you can reboot in safe mode and restore the system to back where it was.

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"you are terrifying
and strange and beautiful
something not everyone knows how to love." - Warsan Shire