PvZ GW quits suddenly

Good day...

I've downloaded the Game Time version of PvZ GW today and have a little issue while trying it out - The game flashes to black once, reveals the app border and then poof - quits suddenly

The process from which I downloaded the game until I start launching the game:

1.At 1st when I try downloading it and installing it, I have a problem during installation process which it gave me an error saying something about "DirectX - Internal error" or some sort. Later I saw some threads suggesting to try running the DXSETUP which you can find by navigating through the game folder that comes along

Thread which I used for solving this problem : http://answers.ea.com/t5/PvZ-GW-PC-Troubleshooting/Plants-Vs-Zombies-Garden-Warfare-PC-unable-to-install/td-p/3019654

Well at first after I did that, I tried installation again and nothing happened nor anything prompted telling me to do anything else or if any error occurred, until I gave my PC a restart.

2.Later, I have to update the game prior to start the game. Same thing happened (nothing happened/Nothing prompted) when I 1st did that until another restart.

3.So now yay I can finally start the fun up (but it still has the "nothing happened" phenomenon before I DID another restart again) so I went to the shop, opened up a few packs of goodies, then later (for the 1st few times of launching) the game window suddenly turns from fullscreen mode to windowed mode. Not really a big deal, I clicked on the window to get back in shape and continued to open the packs. Here's the main point - the window then turns to black once, shows its window border, then finally exits without saying anything... (This is the solid phenomenon after another few more launches of the game, where the initial phenomenon, should come by before this, disappears, after a few solutions I've tried that will be listed below)

Note: The game shuts down as quiet as a mouse with origin still running fine, however, I'm not able to relaunch the game like it's still running in the background. (The "Play" button fades off, leaving me not able to click it for it to work) Only by closing then relaunching Origin enables me to relaunch the game 

Before I posted this, I've tried solutions like restarting (again), using compatibility mode (for PvZ only, not origin), using administrator mode (tried on both sides) tried setting PvZ to use the "High Performance Processor" in the nVidia control panel (Referred from [Note I didn't try all the solutions listed in the post] :http://answers.ea.com/t5/PvZ-GW-PC-Troubleshooting/Game-wont-start-no-error-message-no-nothing/m-p/5011031#U5011031)

Um so I heard providing specs helps a lot on the matter, but I'm not really a tech-savy kind so I would just provide what I know for now... Do tell me (and maybe include the steps on how to get it?) if more info is needed, possibly before the holiday sales ends as I do plan to get the full version of the game... Thanks

The info from dxdiag about my PC : http://hastebin.com/lucepaqudu.tex (I hope this along with my description is detailed enough...)