How do I associate a Steam game with a separate, non-Steam install?

I just bought the Humble Indie Bundle V and I installed the games direct from the downloaded exe’s. Today I noticed that there are Steam codes for all of these, which is pretty awesome. However, after activating my Steam codes, it doesn’t acknolwedge that the games are already installed. I added them as non-Steam games, hoping it’d recognize that these games were some of the same ones already in my library but no dice. Do I just have to uninstall them all?

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  • 2 Solutions collect form web for “How do I associate a Steam game with a separate, non-Steam install?”

    AS far as I am aware, the Steam versions are different. Your best bet is to reinstall through Steam.

    A quick search yields this. In particular, the last answer might help you:

    As far as what I’m asking about, it isn’t the account I’m trying to
    associate, it’s the software. I’m wondering if there is a way to get
    the Steam program to acknowledge my copy of STO that was not installed
    through Steam short of the ‘Add Non-Steam Game’ option or reinstalling
    via Steam, since I also have it through Steam now.

    You can start the install in steam, then stop the download, close
    steam completely, copy or move the STO folders into the steam
    directory. Finally launch steam and validate files for STO, steam
    should recognise everything, it might download a file or 2 but it
    won’t be much.

    Thats what I did for the steam version of Fallout 3 goty and
    everything went smoothly (had the base game only and bought the
    package on sale for a few bucks, copied the FO3 files to steam and
    verified, saved myself a few hours download and have all the usual
    steam features as a bonus).

    I suppose it can’t hurt to try.

    We love Playing Games, especially Video Games.