Please help, Hard to be a god wont install

[Genova]

I am trying to install Hard to be a God, I click on install go through all the usual stuff like make desktop shortcut etc. but then when it comes to the part where it shows the loading bar when installing it does nothing and my virus protector thing pops up with "trojan detected and removed, About this Trojan
Detected: Artemis!A10E69DC5093 (Trojan), Artemis!A10E69DC5093 (Trojan)
Location: E:\AWE.exe" this pops up every couple of seconds and so because of this the game doesn't install.

If it helps to know at all then my system is:
Windows Vista Home Premium 32-bit
Service pack 1
Intel(R) Core(TM)2 Quad CPU Q6600 @2.40GHz 2.40 GHz
Memory: 2.00 GB

Any help would be much appreciated