Did you disable or turn off all security... anti-virus and firewall? Right-click and run trainer and game As Admin. If you still have problems, you need to look closely thru the Troubleshooter here:
Not necessarily. I had to download and apply official patch 1.1.
I'm also using unofficial patch 1.3 because it has many bug fixes. The trainer has never worked for me in neither version (I've played retail and steam). Just use the console
It is most likely something on your end, I just downloaded the trainer and it works fine. I have the Steam version of the game.
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