Wow, took me a long time to get sp2 installed.. Been debating a new machine for the last week and didnt want to waste my time installing windows on my old machine...
Anyway, registry right after windows, before avast install, after avast install but before restart, and after restart after install of avast.......
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\VirtualDeviceDrivers]
"VDD"=hex(7):00,00
The same every single time.. Exacltly what is produced anytime you make a new empty Multi-String Value (REG_MULTI_SZ).