Assassins Creed 3 install problems.

I have a bonus download code form a Samsung SSD foe a free download of Assassins's Creed 3. I have a few questions regarding this please see below.

1) I have downloaded the game and have the file Assassins_Creed_III_Setup.part01.exe and 22 rar files in my G Drive. When I click on Assassins_Creed_III_Setup.part01.exe for install it installs to my C Drive. It does not give me the selection of my G Drive. How do I install the game to my G Drive?

2) If I uninstall the game will I be able to download and install again in the future for an unlimited amount of times?

For 1 couldn't you just download it onto ur c drive then move it onto your g drive? :) and sorry I can't help with 2yodude1026