Need Some Help Deciding...

I havent posted in awhile and obviously a reason for that. the Computer i have now is 2 years old but i have upgraded it with a better Graphics card and Motherboard. But lately i havent been able to play any games including combat arms. I try and play Combat Arms i get an Error. I try and play Need for Speed world i get an error the game wont start. i try and play Battlefield Play4free my Browser is out of date, and the list goes on.

So i have Made two decisions and i need help deciding.

(1) Get a New computer that can handle all the games at once and is more organized.

or (2) Reboot my Entire Computer back to scratch and start over. on the downside of that ill have to re-download all the shit i have now.

Thanks for your opinions