Build 3.0.667 -- same issue. I had Nod32 realtime disabled (Not surfing Internet) while I organized ~10,000 files. It took about 2 days to do this. On the 27th Microsoft SC alerted me that Nod hadn't updated since the 25th. Update now didn't work. I cleared cache and then did update now & it updated. Is there a way to schedule clear cache? Perhaps something I can run once a week? It wasn't my laptop and the user doesn't have the password to Nod GUI.