Symantec AV CE 10 x64 Live Update debug mode

To turn it on, change the key of Debug to REG_SZ of “all”. Make the field empty to turn it off. The key lives in

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Intel\LANDesk\VirusProtect6\CurrentVersion\ProductControl

This will create the text file C:\Program Files (x86)\Symantec AntiVirus\vpdebug.log. When you start Live Update, a dos window will pop up.  After you run Live Update, change the key from all to null (leaving an empty key.)