hmm your graphics card is fine and i would say for the most part you cpu is too even though a i3 isn't really meant for gaming it would still work for something like this. Least for mid settings. Try turning it down to a lower preset and see how that runs.
Have you downloaded it yet? Comes up with some odd errors if you don't have 50 gig of space free, although that may have changed to closer to 20.
kill some background procces, update/reinstall ur directX, disable ur antivirus for a moment and test.
That's cant be right? min CPU req is higher than reccomended req?
Also stop using a 32 bit system
get more than 4 gigs of ram.
It is the ram.
Your OS already taking up the recommended 4G requirement from the go.
Just upgrade your Ram to 8G and you are good.
8G now a day is dirt cheap, like $30-40 on newegg.
Ram definitely would explain a lot. My memory usage is 2.92GB on idle. 4GB might be good back in the day, but 8GB would be best. I have 24GB in my system lol, a bit overkill but whatever :D