BSOD at random times, pointing to windows files

Code:

Executable search path is: 
Windows 7 Kernel Version 7600 MP (4 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7600.17273.amd64fre.win7_gdr.130318-1532
Machine Name:

Update Windows fully.

Code:

fffff880`08e4c978  fffff880`0ff29805Unable to load image \SystemRoot\system32\DRIVERS\atikmdag.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for atikmdag.sys
*** ERROR: Module load completed but symbols could not be loaded for atikmdag.sys
 atikmdag+0x3b805

Update your Radeon video card driver.

Code:

*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 50, {fffff900c2519d44, 0, fffff960001dd344, 0}

Run MemTest86+ for a minimum of 8 passes, preferably overnight, or until you see errors.

For future reference, use these steps to provide additional information that makes it easier to diagnose the BSOD's:

1. Download this .BAT file to your desktop

Download


2. Right-click the .BAT file and 'Run as Administrator'
3. Locate the .ZIP file created on your desktop, and upload it here in your next reply.