Win 8.1 Pro PR Install Questions

[RET-USMC]

Usta play PR-BF2, now BF4, Thought PR Was Long Gone Until Last Night
Already Downloaded PR 1.3 iso.
My OS Is 8.1 Pro, Not a Upgrade.
Could Not Locate Info On PR, is it 32 or 64bit?
Does it work fine in 8.1 Pro?
Not Sure Where To Install On My System, Program Files or Program Files(x86)

Do I Need To Use My Retail BF2 Key?

Thanks, Looking Forward To Replaying

i7-4790K, 16GB, Nvidia GTX-970, Samsung 850 Pro 256GB SSD w/O.S. 8.1 Pro

[RET-USMC]

Located he installation guide, going for broke, not sure about the white list anti-virus phrase
Just going to disable AV during install
Will create a Restore Point 1st.

[LITOralis.nMd]

Post again if you need any assistance getting up and running.