32-bit version is about 2.6 GB download.
64-bit version is about 3.5 GB download.
I have the 32-bit version running on an older 2.4 GHz Core 2 Duo custom build, with 3 GB ram.
After some tinkering, and without any 3rd party software, I have it booting directly to a desktop rather than tiles, and have found most essential items.
Had to install graphics card drivers myself. Installed some software but don't know how I'd find it if I didn't have shortcuts on the desktop or pinned to taskbar.