Approximately 3 weeks ago, NOD32 18.104.22.168, Win XPSP3 began experiencing continuous update problems -- usually, "Error extracting file". I can and have successfully intervened manually to delete requisite files out of %appdata% and try again, but the problem is now occurring on a daily basis. I am not willing to babysit every update and intervene every day. Since intervention usually requires releasing at least one file lock, I can't automate this much. Why are all almost all of my automatic updates now failing with this error? How can I fix it?