Ooooooookay so i recently upgraded my whole pc and decided to install Windows 7 Ultimate with the new gear. Well, everything was running just fine the first day, but suddenly things just started to crash. First it was firefox, 3 or 4 crashes per active minute i was using it. Then FarCry 3, which i completed just fine, crashed a few times (now i have no audio in-game). Later i changed to chrome, and now the freakin tabs crash! League of legends is unplayable (constant crashes). Along with these crashes, ocassionally the shitty blue screen would appear, and restart the computer. And sometimes it takes me several tries to initiate windows 7, since casually it decides to restart before opening. I'm pretty sure the new hardware can't be the problem, but maybe my HDD is causing all these problems. So what's the cause of all this? W7? my old HDD? Both?