I have the pretty much close to the same system specs as yours. CTD when starting campaign and historical mission after fresh install from Steam. What I did:
1. Uninstall VC++ 2008 Redistributable 9.0.30729.4974.
2. Launch the game via steam, the steam client service will try to update and configure your system. If you're not an Admin and UAC is full, you'll get prompted to logon with admin, click NO. If not I assume you have to have UAC on or otherwise it may always try to install this component. (I don't know for sure since I don't set up my local account as a full admin with uac off).
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