I've mostly skimmed this, but I have two tweaks which I don't think have been covered:       The first tweak is a registry change I found useful for Steam games, or rather when they needed to be installed.  The issue is that program installers require administrator access, but user mapped network drives are not shared with other users. However there is a registry setting which can be added to allow mapped network drives to be shared  (essentially flattening the “UAC landscape”). O