BSOD playing any steam games

Update the BIOS to version FC
GIGABYTE - Motherboard - Socket AM3+ - GA-M68MT-S2 (rev. 3.1)

Temporary remove Bitdefender and use Windows Defender as alternative while troubleshooting.
https://forum.bitdefender.com/index.php?showtopic=40936

Code:

fffff880`064f86c8  fffff880`04903674Unable to load image \??\C:\Program Files\Bitdefender\Antivirus Free Edition\bdfwfpf.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for bdfwfpf.sys
*** ERROR: Module load completed but symbols could not be loaded for bdfwfpf.sys
 bdfwfpf+0x1674

Please run CPU-Z | Softwares | CPUID, open it and make screenshots of the following tabs

• CPU
• Mainboard
• Memory
• SPD*
• Graphics

*SPD shows the details of each module, you can show the details by choosing different slots in the left upper corner.
Please make screenshots of each module.

Please post each screenshot in your next reply/replies.

I can't update my BIOS to version FC because the files (from the GA-M68MT-S2 site) are not compatible with my computer

That may be because of the difference with the rev., if you look at your motherboard in the case what does it say?

Then the download should work, I posted the link for rev 3.1.

What message is it that you get exactly?

That sounds like a 32bit version, but I don't see anywhere 32bits or 64bits downloads or something.

The link you got me doesn't have that reflash button/link.

The difference is the language, I forgot to edit the link to the english version