I'm am unsure of what's happening, but games/videos won't load

I've been having this problem for a while now, and I stopped using my Windows desktop and started using my Chromebook instead. I just got back into using my desktop again, and I restarted it factory fresh.

After installing all possible Windows updates, installing the latest graphics drivers, and installing Directx 11, I can't get my game to run. And videos still don't play, that's strange because I restarted my OS. I thought this would be fixed. I can't even run Sony Vegas Pro 12. There's something wrong with my graphics card.

When I access dxdiag, the program crashes. The next time I run it, it says that it had trouble running Direct3D, and if I would like to bypass it. When I check the display tab, I can only see the name of my graphics card "AMD Radeon 6570". But I can't see the manufacturer name or anything else like I usually could before this problem.


If there's a solution for this, I would greatly appreciate the support.

All kinds of weird things happen with my computer, it's unexplainable. Like how Java randomly crashes, even the java updater.
Lightshot also crashes upon startup. When I right click on the SD card Internet Explorer crashes.
Just makes me want to give up on this computer forever, it doesn't even have a monitor. Just a malfunctioning monitor that has dimming problems. This is why I switched to using my Chromebook in the end.
I got this desktop computer back in 2011 in July, and 3 months later the hard drive fails on me. It was weird because a hacker said he'd hack me, then all of a sudden I get blue screen, and my hard drive stopped working.
So I had to get a new one with warranty.
Then the SD port doesn't want to read SD cards anymore for some reason.
This graphics problem started in Oct 2013. I played emulators a lot on it, to play my Gamecube and PS2 games on my computer.

Here is a log file from dxdiag: Dxdiag log - Pastebin.com