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I have found many questions regarding this on this Q&A Board. However, I am not only moving my games from Vista to 7, but also from 32-bit to 64-bit. I once had some trouble doing so using a backup (same account), hence the reason I ask. Are there known problems moving from x86 to x64 while using the same Steam files?

I wouldn't mind downloading my games again that much because I have a DL-Flatrate, it's just that I would have to download around 200GB, which would take around 3 days just using my bandwidth for Steam. Also, my provider probably won't be happy.

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Although your question is different, I would give it the same answer as this one:… – Denilson Sá Feb 8 '11 at 2:22
I haven't forgotten about you guys. I'll accept an answer once the migration is done. – Mike Feb 11 '11 at 12:11
Th... three days? Don't ever, ever talk to me about 'long' download times. – GnomeSlice May 7 '12 at 18:30
up vote 11 down vote accepted

All you need is Steam.exe and the steamapps folder. Move those into C:/Program Files (x86)/Steam and run Steam.exe. The application will redownload all of the steam files and will automatically detect all of your installed games in the steamapps folder. It's a really neat program actually.

As far as I know, Steam doesn't use 64-bit for the client or for the games, so you shouldn't run into any issues.

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My roommate, neighbor and I use this so that only one of us downloads a copy, then we move it to the other machines ... and we have a mix of XP and 7, and haven't had any problems (I think one of the 7 machines is 64bit). – Joe Feb 9 '11 at 14:35

For the past 4 years I've just moved the same Steam directory around to my other computers (or to a temporary drive when I do a reformat).

Occasionally you have to reinstall the Steam client over the old install, but this is, in my experiences, rare.

You should have absolutely no issues.

EDIT: Also remember that some of your save games get saved into your My Documents folder. Don't forget those if you want your old saves!

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+1 for mentioning save games. I wish games could save their data in a consistent location – Chris Driver Feb 8 '11 at 9:14

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