Can someone who doesn't know how to code use it?
Yes, at least I tried to make this as simple as possible (without a user interface anyway)
Just try and follow the instructions :)
Windows 7 does not start on a 32 bit PC, what should I do?
I believe you'll need a Windows 64 bit to run it. Even for Windows 7 most versions are 64 bit...unless your PC is reaaally old