Windows 7: Bugcheck blue screen

• Running processes
  • Audiodg.exe's information is not available (n/a), which makes me wonder. I see you're using Realtek, so I'd recommend you to do a clean install of it, using the tutorial I'll post.
• Direct-X was mentioned in the dump, though there weren't any Graphic driver references which is quite rare. To be on the safe side, download Direct-X below and afterwards follow the tutorial below on doing a secure clean install on your Graphic driver.
  • Download: DirectX End-User Runtime - Microsoft Download Center - Download Details

Realtek Clean-install

i) Make your way to Realtek - Downloads
ii) Uninstall the Realtek driver you currently have and all its extensions
iii) Download Driver Sweeper
iv) Get to safe mode (without network) and search for Driver Sweeper in your
v) Select all the Network Realtek components and analyse them
vi) Clean them, head into Windows without internet and install the driver you downloaded previously

Memory // RAM // Test

Looking at your bugcheck it's likely that a memory corruption event was triggered. Though a driver could be causing the memory to be borked, but we're usually suggesting a memory test before moving forward. Do a scan with Memtest86+. Memtest is a scanner that'll check your sticks for errors.

   Warning

Note that the below instructions may break your WARRANTY rules. If you're unsure check manuals, separated warranty papers, stickers on computer for secure permission.

To ensure that we'll know if it's the slots on the motherboard that's broken, or the sticks itself - we have a little procedure we'll recommend. Remove 1 stick, scan the other with Memtest in the current slot. After 7 passes, move the stick to another slot and scan, and so on and so forth until you've scanned all the sticks, and all the slots, one by one.

Memtest86+ - Advanced Memory Diagnostic Tool

MEMORY_MANAGEMENT (1a)
    # Any other values for parameter 1 must be individually examined.
Arguments:
Arg1: 0000000000041201, The subtype of the bugcheck.
Arg2: fffff68000036198
Arg3: df200000cb62e867
Arg4: fffffa80094e34e0
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
SYSTEM_THREAD_EXCEPTION_NOT_HANDLED_M (1000007e)
This is a very common bugcheck.  Usually the exception address pinpoints
the driver/function that caused the problem.  Always note this address
as well as the link date of the driver/image that contains this address.
Some common problems are exception code 0x80000003.  This means a hard
coded breakpoint or assertion was hit, but this system was booted
/NODEBUG.  This is not supposed to happen as developers should never have
hardcoded breakpoints in retail code, but ...
If this happens, make sure a debugger gets connected, and the
system is booted /DEBUG.  This will let us see why this breakpoint is
happening.
Arguments:
Arg1: ffffffffc0000005, The exception code that was not handled
Arg2: fffff88004820cf7, The address that the exception occurred at
Arg3: fffff880071fe568, Exception Record Address
Arg4: fffff880071fddc0, Context Record Address