Guild Wars 2

Hello!
Recently I got a new rig & Win64. So now I want to try the game’s 64-version. But I have not so fast connection and I do not want to wait a couple of days to download the game again.
So – can I somehow upgrade only client (executive files) without downloading the whole game?

GW2 will automatically switch to the 64-bit version if your computer supports it. You only need to copy your Guild Wars 2 folder to your new computer.

The client IS the 64 bit version. Both 32 and 64 use the same .dat file.

Thank you for your answers.