Yes again you are right! its the antivirus who blocked me from using Phoenix.
However i tried to flash my phone. but am getting below error and tried more than 3 times always i get same error.
The flashing failed. Do you want to retry the flashing?
HRESULT 0x8401f141 (-2080247487)
Flash: Boot rom was not detected after phone boot up. Unable to start flashing.
OS : Windows 7 64 bit (Home Premium)
As i mentioned in my post, My Nokia N8 is totally dead, when i connect charger the red light above usb cable doesn't light-up, maybe thats why its not able to boot rom ??
If anybody else facing similar issue please advice on how to proceed further.