12/11/2012 11:59Posted by Trõllrománia

even the 64 version?

Especially the 64-bit version. WoW can now run natively in a 64-bit architecture, this means, if you happen to have a 64-bit operating system, just like Windows7 x64 and a x64 compatible cpu, you should be in for a performance boost over an equivalent x86 (32-bit) system.

For the other games that can’t run natively in x64, Windows has an integrated emulator (that goes by the awesome name of WoW64!) that enables most 32-bit applications to run without any problems on the x64 version of the OS.

12/11/2012 13:02Posted by Trõllrománia

But win 7x64 can run on my pc? at office i have a low pc, with Core 2 duo

Yes, your cpu uses a 64-bit instruction set so it should be able to run Windows x64.
Just a small detail though, x64 applications tend to use more RAM than their 32-bit counterparts, so if you intend to keep that system, maybe you should consider increasing your RAM to at least 4GB.

12/11/2012 14:51Posted by Ezuela

I remember reading something like that that in case you start WoW using the launcher, it will automatically select the correct version depending on your system?

It should, but if you want to make sure that your WoW client is running in 64-bit, you can start the launcher, go to “Options”, “Game Preferences”, and make sure that the “Launch 32-bit client” checkbox is unticked.

If you then launch the game, the login screen should display (x64) on the bottom left corner of the screen.